$FSEN
FS Specialty Lending Fund Stock $fsen

$fsen Overview Financials Valuation SEC Filings Company Website

2024 Q4 Form 10-Q Financial Statement

#000162828024047639 Filed on November 13, 2024

Income Statement

Concept	2024 Q4	2024 Q3
Revenue		$31.05M
YoY Change		76.89%
Cost Of Revenue
YoY Change
Gross Profit
YoY Change
Gross Profit Margin
Selling, General & Admin
YoY Change
% of Gross Profit
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization
YoY Change
% of Gross Profit
Operating Expenses
YoY Change
Operating Profit
YoY Change
Interest Expense
YoY Change
% of Operating Profit
Other Income/Expense, Net
YoY Change
Pretax Income
YoY Change
Income Tax
% Of Pretax Income
Net Earnings		$13.84M
YoY Change		-150.46%
Net Earnings / Revenue		44.57%
Basic Earnings Per Share		$0.03
Diluted Earnings Per Share		$0.03
COMMON SHARES
Basic Shares Outstanding	455.5M shares	455.5M shares
Diluted Shares Outstanding		455.5M shares

Balance Sheet

Concept	2024 Q4	2024 Q3
SHORT-TERM ASSETS
Cash & Short-Term Investments
YoY Change
Cash & Equivalents		$235.1M
Short-Term Investments
Other Short-Term Assets
YoY Change
Inventory
Prepaid Expenses
Receivables
Other Receivables
Total Short-Term Assets
YoY Change
LONG-TERM ASSETS
Property, Plant & Equipment
YoY Change
Goodwill
YoY Change
Intangibles
YoY Change
Long-Term Investments
YoY Change
Other Assets
YoY Change
Total Long-Term Assets
YoY Change
TOTAL ASSETS
Total Short-Term Assets
Total Long-Term Assets
Total Assets		$1.986B
YoY Change		10.58%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable
YoY Change
Accrued Expenses
YoY Change
Deferred Revenue
YoY Change
Short-Term Debt
YoY Change
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities
YoY Change
LONG-TERM LIABILITIES
Long-Term Debt
YoY Change
Other Long-Term Liabilities
YoY Change
Total Long-Term Liabilities
YoY Change
TOTAL LIABILITIES
Total Short-Term Liabilities
Total Long-Term Liabilities
Total Liabilities		$431.3M
YoY Change		210.59%
SHAREHOLDERS EQUITY
Retained Earnings		-$1.631B
YoY Change		5.25%
Common Stock		$456.0K
YoY Change		0.0%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity		$1.555B
YoY Change
Total Liabilities & Shareholders Equity		$1.986B
YoY Change		10.58%

Cashflow Statement

Concept	2024 Q4	2024 Q3
OPERATING ACTIVITIES
Net Income		$13.84M
YoY Change		-150.46%
Depreciation, Depletion And Amortization
YoY Change
Cash From Operating Activities
YoY Change
INVESTING ACTIVITIES
Capital Expenditures
YoY Change
Acquisitions
YoY Change
Other Investing Activities
YoY Change
Cash From Investing Activities
YoY Change
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities
YoY Change
NET CHANGE
Cash From Operating Activities
Cash From Investing Activities
Cash From Financing Activities
Net Change In Cash
YoY Change
FREE CASH FLOW
Cash From Operating Activities
Capital Expenditures
Free Cash Flow
YoY Change

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
	dei	Entity Central Index Key EntityCentralIndexKey	0001501729
	dei	Document Quarterly Report DocumentQuarterlyReport	true
	dei	Document Period End Date DocumentPeriodEndDate	2024-09-30
	dei	Document Transition Report DocumentTransitionReport	false
	dei	Entity File Number EntityFileNumber	814-00841
	dei	Entity Registrant Name EntityRegistrantName	FS Specialty Lending Fund
	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	DE
	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	27-6822130
	dei	Entity Address Address Line1 EntityAddressAddressLine1	201 Rouse Boulevard
	dei	Entity Address City Or Town EntityAddressCityOrTown	Philadelphia
	dei	Entity Address State Or Province EntityAddressStateOrProvince	PA
	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	19112
	dei	City Area Code CityAreaCode	215
	dei	Local Phone Number LocalPhoneNumber	495-1150
	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
	dei	Entity Filer Category EntityFilerCategory	Non-accelerated Filer
	dei	Entity Small Business EntitySmallBusiness	false
	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
	dei	Entity Shell Company EntityShellCompany	false
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CY2023Q4	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	1523196000	usd
CY2023Q4	us-gaap	Prepaid Expense And Other Assets PrepaidExpenseAndOtherAssets	254000	usd
CY2024Q3	us-gaap	Assets Assets	1986320000	usd
CY2023Q4	us-gaap	Assets Assets	2059557000	usd
CY2024Q3	us-gaap	Payable Investment Purchase PayableInvestmentPurchase	21087000	usd
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CY2024Q3	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	22528000	usd
CY2024Q3	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	22590000	usd
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CY2024Q3	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	22697000	usd
CY2024Q3	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	22838000	usd
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CY2024Q3	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	806000	usd
CY2024Q3	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	813000	usd
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	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2024
	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	Q3
	dei	Amendment Flag AmendmentFlag	false
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CY2022Q4	us-gaap	Net Asset Value Per Share NetAssetValuePerShare	3.88
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.16
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.16
CY2024Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	455506155	shares
CY2024Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	455506155	shares
CY2023Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	455401486	shares
CY2023Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	455401486	shares
	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	-126000	usd
	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	-47000	usd
	us-gaap	Increase Decrease In Payable For Investment Purchased IncreaseDecreaseInPayableForInvestmentPurchased	-40509000	usd
	us-gaap	Increase Decrease In Payable For Investment Purchased IncreaseDecreaseInPayableForInvestmentPurchased	50847000	usd
	fssl	Increase Decrease In Derivative Income Payable IncreaseDecreaseInDerivativeIncomePayable	144000	usd
CY2024Q3	us-gaap	Investment Basis Spread Variable Rate InvestmentBasisSpreadVariableRate	0.0675
CY2024Q3	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	19291000	usd
CY2024Q3	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	18897000	usd
CY2024Q3	us-gaap	Investment Basis Spread Variable Rate InvestmentBasisSpreadVariableRate	0.0475
CY2024Q3	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	17274000	usd
CY2024Q3	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	19745000	usd
CY2024Q3	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	19324000	usd
CY2024Q3	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	19105000	usd
CY2024Q3	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	1161000	usd
CY2024Q3	us-gaap	Investment Basis Spread Variable Rate InvestmentBasisSpreadVariableRate	0.0550
CY2024Q3	us-gaap	Investment Interest Rate Floor InvestmentInterestRateFloor	0.010
CY2024Q3	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	38000000	usd
CY2024Q3	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	37263000	usd
CY2024Q3	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	37240000	usd
CY2024Q3	us-gaap	Investment Basis Spread Variable Rate InvestmentBasisSpreadVariableRate	0.0400
CY2024Q3	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	14281000	usd
CY2024Q3	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	4739000	usd
CY2024Q3	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	4428000	usd
CY2024Q3	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	3827000	usd
CY2024Q3	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	0	usd
CY2024Q3	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	9795000	usd
CY2024Q3	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	9819000	usd
CY2024Q3	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	9701000	usd
CY2024Q3	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	1705000	usd
CY2024Q3	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	1736000	usd
CY2024Q3	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	29865000	usd
CY2024Q3	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	29561000	usd
CY2024Q3	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	21904000	usd
CY2024Q3	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	3214000	usd
CY2024Q3	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	187000	usd
CY2023Q4	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	1661000	usd
CY2023Q4	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	22200000	usd
CY2024Q3	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	0	usd
CY2024Q3	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	0	usd
CY2023Q4	us-gaap	Investment Basis Spread Variable Rate InvestmentBasisSpreadVariableRate	0.0450
CY2023Q4	us-gaap	Investment Interest Rate Floor InvestmentInterestRateFloor	0.015
CY2023Q4	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	22856000	usd
CY2023Q4	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	20779000	usd
CY2023Q4	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	23050000	usd
CY2023Q4	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	100000000	usd
CY2023Q4	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	1129000	usd
CY2023Q4	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	1234000	usd
CY2023Q4	us-gaap	Investment Basis Spread Variable Rate InvestmentBasisSpreadVariableRate	0.0450
CY2023Q4	us-gaap	Investment Interest Rate Floor InvestmentInterestRateFloor	0.005
CY2023Q4	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	20000000	usd
CY2023Q4	us-gaap	Investment Basis Spread Variable Rate InvestmentBasisSpreadVariableRate	0.0500
CY2023Q4	us-gaap	Investment Interest Rate Floor InvestmentInterestRateFloor	0.008
CY2023Q4	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	4500000	usd
CY2023Q4	us-gaap	Investment Basis Spread Variable Rate InvestmentBasisSpreadVariableRate	0.0525
CY2023Q4	us-gaap	Investment Interest Rate InvestmentInterestRate	0.078
CY2023Q4	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	13951000	usd
CY2023Q4	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	13874000	usd
CY2023Q4	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	13510000	usd
CY2023Q4	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	19950000	usd
CY2023Q4	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	4864000	usd
CY2023Q4	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	19923000	usd
CY2023Q4	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	19994000	usd
CY2023Q4	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	20062000	usd
CY2023Q4	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	7000000	usd
CY2023Q4	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	7447000	usd
CY2023Q4	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	19680000	usd
CY2023Q4	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	19772000	usd
CY2023Q4	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	9951000	usd
CY2023Q4	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	9874000	usd
CY2023Q4	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	39545000	usd
CY2023Q4	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	748000	usd
CY2022Q4	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	1885000	usd
CY2023	us-gaap	Investments In And Advances To Affiliates At Fair Value Gross Additions InvestmentsInAndAdvancesToAffiliatesAtFairValueGrossAdditions	246000	usd
CY2023	us-gaap	Investments In And Advances To Affiliates At Fair Value Gross Reductions InvestmentsInAndAdvancesToAffiliatesAtFairValueGrossReductions	0	usd
CY2023	us-gaap	Debt And Equity Securities Realized Gain Loss DebtAndEquitySecuritiesRealizedGainLoss	-21704000	usd
CY2023	us-gaap	Debt And Equity Securities Unrealized Gain Loss DebtAndEquitySecuritiesUnrealizedGainLoss	19573000	usd
CY2023Q4	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	0	usd
CY2023	us-gaap	Interest Income Operating InterestIncomeOperating	0	usd
CY2023	us-gaap	Interest Income Operating Paid In Kind InterestIncomeOperatingPaidInKind	0	usd
CY2023Q4	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	22200000	usd
CY2023Q4	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	23823000	usd
CY2023Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	486059000	usd
CY2023Q4	us-gaap	Receivable Investment Sale ReceivableInvestmentSale	27860000	usd
CY2024Q3	fssl	Derivative Income Payable DerivativeIncomePayable	263000	usd
CY2023Q4	fssl	Derivative Income Payable DerivativeIncomePayable	259000	usd
CY2024Q3	us-gaap	Distribution Payable DistributionPayable	0	usd
CY2023Q4	us-gaap	Distribution Payable DistributionPayable	27740000	usd
CY2024Q3	us-gaap	Management Fee Payable ManagementFeePayable	8761000	usd
CY2023Q4	us-gaap	Management Fee Payable ManagementFeePayable	8416000	usd
CY2024Q3	us-gaap	Accrued Professional Fees Current And Noncurrent AccruedProfessionalFeesCurrentAndNoncurrent	1186000	usd
CY2023Q4	us-gaap	Accrued Professional Fees Current And Noncurrent AccruedProfessionalFeesCurrentAndNoncurrent	108000	usd
CY2024Q3	us-gaap	Interest Payable Current And Noncurrent InterestPayableCurrentAndNoncurrent	1341000	usd
CY2023Q4	us-gaap	Interest Payable Current And Noncurrent InterestPayableCurrentAndNoncurrent	1603000	usd
CY2024Q3	us-gaap	Incentive Fee Payable IncentiveFeePayable	164000	usd
CY2024Q3	us-gaap	Accrued Liabilities And Other Liabilities AccruedLiabilitiesAndOtherLiabilities	2524000	usd
CY2023Q4	us-gaap	Accrued Liabilities And Other Liabilities AccruedLiabilitiesAndOtherLiabilities	3179000	usd
CY2024Q3	us-gaap	Liabilities Liabilities	431331000	usd
CY2023Q4	us-gaap	Liabilities Liabilities	497502000	usd
CY2024Q3	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		usd
CY2023Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		usd
CY2024Q3	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.001
CY2023Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.001
CY2024Q3	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	50000000	shares
CY2023Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	50000000	shares
CY2024Q3	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2023Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2024Q3	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2023Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2024Q3	us-gaap	Preferred Stock Value PreferredStockValue	0	usd
CY2023Q4	us-gaap	Preferred Stock Value PreferredStockValue	0	usd
CY2023Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.001
CY2024Q3	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.001
CY2023Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	700000000	shares
CY2024Q3	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	700000000	shares
CY2024Q3	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	455506155	shares
CY2024Q3	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	455506155	shares
CY2023Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	455506155	shares
CY2023Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	455506155	shares
CY2024Q3	us-gaap	Common Stock Value CommonStockValue	456000	usd
CY2023Q4	us-gaap	Common Stock Value CommonStockValue	456000	usd
CY2024Q3	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	3185784000	usd
CY2023Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	3185784000	usd
CY2024Q3	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	-1631251000	usd
CY2023Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	-1624185000	usd
CY2023Q4	us-gaap	Stockholders Equity StockholdersEquity	1562055000	usd
CY2024Q3	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	1986320000	usd
CY2023Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	2059557000	usd
CY2024Q3	us-gaap	Net Asset Value Per Share NetAssetValuePerShare	3.41
CY2023Q4	us-gaap	Net Asset Value Per Share NetAssetValuePerShare	3.43
CY2024Q3	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	18849000	usd
CY2024Q3	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	18789000	usd
CY2024Q3	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	18702000	usd
CY2024Q3	us-gaap	Investment Basis Spread Variable Rate InvestmentBasisSpreadVariableRate	0.0350
CY2024Q3	us-gaap	Investment Interest Rate Floor InvestmentInterestRateFloor	0.005
CY2024Q3	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	19818000	usd
CY2024Q3	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	19949000	usd
CY2024Q3	us-gaap	Investment Basis Spread Variable Rate InvestmentBasisSpreadVariableRate	0.0375
CY2024Q3	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	393000	usd
CY2024Q3	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	295000	usd
CY2024Q3	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	383000	usd
CY2024Q3	us-gaap	Investment Basis Spread Variable Rate InvestmentBasisSpreadVariableRate	0.0675
CY2024Q3	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	27500000	usd
CY2024Q3	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	27500000	usd
CY2024Q3	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	27775000	usd
CY2024Q3	us-gaap	Investment Basis Spread Variable Rate InvestmentBasisSpreadVariableRate	0.0400
CY2024Q3	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	8324000	usd
CY2024Q3	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	8278000	usd
CY2024Q3	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	8234000	usd
CY2024Q3	us-gaap	Investment Basis Spread Variable Rate InvestmentBasisSpreadVariableRate	0.0400
CY2024Q3	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	25935000	usd
CY2024Q3	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	25327000	usd
CY2024Q3	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	25988000	usd
CY2024Q3	us-gaap	Investment Basis Spread Variable Rate InvestmentBasisSpreadVariableRate	0.0500
CY2024Q3	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	24684000	usd
CY2024Q3	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	22381000	usd
CY2024Q3	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	24313000	usd
CY2024Q3	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	2761000	usd
CY2024Q3	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	2846000	usd
CY2024Q3	us-gaap	Investment Interest Rate InvestmentInterestRate	0.060
CY2024Q3	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	18894000	usd
CY2024Q3	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	46324000	usd
CY2024Q3	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	67053000	usd
CY2024Q3	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	648000	usd
CY2024Q3	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	630000	usd
CY2023Q4	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	39427000	usd
CY2024Q3	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	46324000	usd
CY2023Q4	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	9071000	usd
CY2023Q4	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	9358000	usd
CY2023Q4	us-gaap	Investment Basis Spread Variable Rate InvestmentBasisSpreadVariableRate	0.0375
CY2023Q4	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	19620000	usd
CY2023Q4	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	19781000	usd
CY2023Q4	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	30673000	usd
CY2023Q4	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	30079000	usd
CY2023Q4	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	30059000	usd
CY2023Q4	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	19922000	usd
CY2023Q4	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	20008000	usd
CY2023Q4	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	0	usd
CY2024Q3	us-gaap	Stockholders Equity StockholdersEquity	1554989000	usd
CY2024Q3	us-gaap	Gross Investment Income Operating GrossInvestmentIncomeOperating	52738000	usd
CY2023Q3	us-gaap	Gross Investment Income Operating GrossInvestmentIncomeOperating	30443000	usd
	us-gaap	Gross Investment Income Operating GrossInvestmentIncomeOperating	172274000	usd
	us-gaap	Gross Investment Income Operating GrossInvestmentIncomeOperating	115014000	usd
CY2024Q3	us-gaap	Management Fee Expense ManagementFeeExpense	8764000	usd
CY2023Q3	us-gaap	Management Fee Expense ManagementFeeExpense	7778000	usd
	us-gaap	Management Fee Expense ManagementFeeExpense	26841000	usd
	us-gaap	Management Fee Expense ManagementFeeExpense	26957000	usd
CY2024Q3	us-gaap	Administrative Fees Expense AdministrativeFeesExpense	1552000	usd
CY2023Q3	us-gaap	Administrative Fees Expense AdministrativeFeesExpense	1887000	usd
	us-gaap	Administrative Fees Expense AdministrativeFeesExpense	4622000	usd
	us-gaap	Administrative Fees Expense AdministrativeFeesExpense	4566000	usd
CY2024Q3	us-gaap	Noninterest Expense Transfer Agent And Custodian Fees NoninterestExpenseTransferAgentAndCustodianFees	929000	usd
CY2023Q3	us-gaap	Noninterest Expense Transfer Agent And Custodian Fees NoninterestExpenseTransferAgentAndCustodianFees	820000	usd
	us-gaap	Noninterest Expense Transfer Agent And Custodian Fees NoninterestExpenseTransferAgentAndCustodianFees	2767000	usd
	us-gaap	Noninterest Expense Transfer Agent And Custodian Fees NoninterestExpenseTransferAgentAndCustodianFees	2365000	usd
CY2024Q3	us-gaap	Professional Fees ProfessionalFees	148000	usd
CY2023Q3	us-gaap	Professional Fees ProfessionalFees	82000	usd
	us-gaap	Professional Fees ProfessionalFees	452000	usd
	us-gaap	Professional Fees ProfessionalFees	444000	usd
CY2024Q3	us-gaap	Interest Expense Operating InterestExpenseOperating	9086000	usd
CY2023Q3	us-gaap	Interest Expense Operating InterestExpenseOperating	738000	usd
	us-gaap	Interest Expense Operating InterestExpenseOperating	27210000	usd
	us-gaap	Interest Expense Operating InterestExpenseOperating	19066000	usd
CY2024Q3	us-gaap	Trustee Fees TrusteeFees	164000	usd
CY2023Q3	us-gaap	Trustee Fees TrusteeFees	163000	usd
	us-gaap	Trustee Fees TrusteeFees	492000	usd
	us-gaap	Trustee Fees TrusteeFees	503000	usd
CY2024Q3	us-gaap	Other General And Administrative Expense OtherGeneralAndAdministrativeExpense	1050000	usd
	us-gaap	Other General And Administrative Expense OtherGeneralAndAdministrativeExpense	3375000	usd
	us-gaap	Other General And Administrative Expense OtherGeneralAndAdministrativeExpense	3524000	usd
CY2024Q3	us-gaap	Investment Income Investment Expense InvestmentIncomeInvestmentExpense	21693000	usd
CY2023Q3	us-gaap	Investment Income Investment Expense InvestmentIncomeInvestmentExpense	12954000	usd
	us-gaap	Investment Income Investment Expense InvestmentIncomeInvestmentExpense	65759000	usd
	us-gaap	Investment Income Investment Expense InvestmentIncomeInvestmentExpense	57425000	usd
CY2024Q3	us-gaap	Investment Company Contractual Fee Waived InvestmentCompanyContractualFeeWaived	3000	usd
CY2023Q3	us-gaap	Investment Company Contractual Fee Waived InvestmentCompanyContractualFeeWaived	63000	usd
	us-gaap	Investment Company Contractual Fee Waived InvestmentCompanyContractualFeeWaived	6000	usd
	us-gaap	Investment Company Contractual Fee Waived InvestmentCompanyContractualFeeWaived	337000	usd
CY2024Q3	us-gaap	Investment Company Expense After Reduction Of Fee Waiver And Reimbursement InvestmentCompanyExpenseAfterReductionOfFeeWaiverAndReimbursement	21690000	usd
CY2023Q3	us-gaap	Investment Company Expense After Reduction Of Fee Waiver And Reimbursement InvestmentCompanyExpenseAfterReductionOfFeeWaiverAndReimbursement	12891000	usd
	us-gaap	Investment Company Expense After Reduction Of Fee Waiver And Reimbursement InvestmentCompanyExpenseAfterReductionOfFeeWaiverAndReimbursement	65753000	usd
	us-gaap	Investment Company Expense After Reduction Of Fee Waiver And Reimbursement InvestmentCompanyExpenseAfterReductionOfFeeWaiverAndReimbursement	57088000	usd
CY2024Q3	us-gaap	Net Investment Income NetInvestmentIncome	31048000	usd
CY2023Q3	us-gaap	Net Investment Income NetInvestmentIncome	17552000	usd
	us-gaap	Net Investment Income NetInvestmentIncome	106521000	usd
	us-gaap	Net Investment Income NetInvestmentIncome	57926000	usd
CY2024Q3	us-gaap	Investment Income Operating Tax Expense Benefit InvestmentIncomeOperatingTaxExpenseBenefit	114000	usd
	us-gaap	Investment Income Operating Tax Expense Benefit InvestmentIncomeOperatingTaxExpenseBenefit	923000	usd
	us-gaap	Investment Income Operating Tax Expense Benefit InvestmentIncomeOperatingTaxExpenseBenefit	2150000	usd
CY2024Q3	us-gaap	Investment Income Operating After Expense And Tax InvestmentIncomeOperatingAfterExpenseAndTax	30934000	usd
CY2023Q3	us-gaap	Investment Income Operating After Expense And Tax InvestmentIncomeOperatingAfterExpenseAndTax	16718000	usd
	us-gaap	Investment Income Operating After Expense And Tax InvestmentIncomeOperatingAfterExpenseAndTax	105598000	usd
	us-gaap	Investment Income Operating After Expense And Tax InvestmentIncomeOperatingAfterExpenseAndTax	55776000	usd
CY2024Q3	us-gaap	Foreign Currency Transaction Gain Loss Realized After Tax ForeignCurrencyTransactionGainLossRealizedAfterTax	0	usd
CY2023Q3	us-gaap	Foreign Currency Transaction Gain Loss Realized After Tax ForeignCurrencyTransactionGainLossRealizedAfterTax	-3000	usd
	us-gaap	Foreign Currency Transaction Gain Loss Realized After Tax ForeignCurrencyTransactionGainLossRealizedAfterTax	0	usd
	us-gaap	Foreign Currency Transaction Gain Loss Realized After Tax ForeignCurrencyTransactionGainLossRealizedAfterTax	-123000	usd
CY2024Q3	us-gaap	Gain Loss On Sale Of Derivatives GainLossOnSaleOfDerivatives	830000	usd
CY2023Q3	us-gaap	Gain Loss On Sale Of Derivatives GainLossOnSaleOfDerivatives	-138000	usd
	us-gaap	Gain Loss On Sale Of Derivatives GainLossOnSaleOfDerivatives	7057000	usd
	us-gaap	Gain Loss On Sale Of Derivatives GainLossOnSaleOfDerivatives	88000	usd
CY2024Q3	us-gaap	Unrealized Gain Loss On Derivatives UnrealizedGainLossOnDerivatives	-238000	usd
CY2023Q3	us-gaap	Unrealized Gain Loss On Derivatives UnrealizedGainLossOnDerivatives	-803000	usd
	us-gaap	Unrealized Gain Loss On Derivatives UnrealizedGainLossOnDerivatives	-13000	usd
	us-gaap	Unrealized Gain Loss On Derivatives UnrealizedGainLossOnDerivatives	400000	usd
CY2024Q3	us-gaap	Foreign Currency Transaction Gain Loss Unrealized After Tax ForeignCurrencyTransactionGainLossUnrealizedAfterTax	4000	usd
CY2023Q3	us-gaap	Foreign Currency Transaction Gain Loss Unrealized After Tax ForeignCurrencyTransactionGainLossUnrealizedAfterTax	-7000	usd
	us-gaap	Foreign Currency Transaction Gain Loss Unrealized After Tax ForeignCurrencyTransactionGainLossUnrealizedAfterTax	-9000	usd
	us-gaap	Foreign Currency Transaction Gain Loss Unrealized After Tax ForeignCurrencyTransactionGainLossUnrealizedAfterTax	27000	usd
CY2024Q3	us-gaap	Realized And Unrealized Gain Loss Investment Derivative And Foreign Currency Transaction Operating After Tax RealizedAndUnrealizedGainLossInvestmentDerivativeAndForeignCurrencyTransactionOperatingAfterTax	-17097000	usd
CY2023Q3	us-gaap	Realized And Unrealized Gain Loss Investment Derivative And Foreign Currency Transaction Operating After Tax RealizedAndUnrealizedGainLossInvestmentDerivativeAndForeignCurrencyTransactionOperatingAfterTax	-44141000	usd
	us-gaap	Realized And Unrealized Gain Loss Investment Derivative And Foreign Currency Transaction Operating After Tax RealizedAndUnrealizedGainLossInvestmentDerivativeAndForeignCurrencyTransactionOperatingAfterTax	-32176000	usd
	us-gaap	Realized And Unrealized Gain Loss Investment Derivative And Foreign Currency Transaction Operating After Tax RealizedAndUnrealizedGainLossInvestmentDerivativeAndForeignCurrencyTransactionOperatingAfterTax	-140404000	usd
CY2024Q3	us-gaap	Net Income Loss NetIncomeLoss	13837000	usd
CY2023Q3	us-gaap	Net Income Loss NetIncomeLoss	-27423000	usd
	us-gaap	Net Income Loss NetIncomeLoss	73422000	usd
	us-gaap	Net Income Loss NetIncomeLoss	-84628000	usd
CY2024Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.03
CY2024Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.03
CY2023Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.06
CY2023Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.06
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	455506155	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	454052204	shares
CY2023Q3	us-gaap	Investment Income Operating After Expense And Tax InvestmentIncomeOperatingAfterExpenseAndTax	16718000	usd
	us-gaap	Investment Income Operating After Expense And Tax InvestmentIncomeOperatingAfterExpenseAndTax	105598000	usd
	us-gaap	Investment Income Operating After Expense And Tax InvestmentIncomeOperatingAfterExpenseAndTax	55776000	usd
CY2024Q3	us-gaap	Realized Gain Loss Investment Derivative And Foreign Currency Transaction Price Change Operating After Tax RealizedGainLossInvestmentDerivativeAndForeignCurrencyTransactionPriceChangeOperatingAfterTax	-7000000	usd
CY2023Q3	us-gaap	Realized Gain Loss Investment Derivative And Foreign Currency Transaction Price Change Operating After Tax RealizedGainLossInvestmentDerivativeAndForeignCurrencyTransactionPriceChangeOperatingAfterTax	6249000	usd
	us-gaap	Realized Gain Loss Investment Derivative And Foreign Currency Transaction Price Change Operating After Tax RealizedGainLossInvestmentDerivativeAndForeignCurrencyTransactionPriceChangeOperatingAfterTax	11518000	usd
	us-gaap	Realized Gain Loss Investment Derivative And Foreign Currency Transaction Price Change Operating After Tax RealizedGainLossInvestmentDerivativeAndForeignCurrencyTransactionPriceChangeOperatingAfterTax	-56340000	usd
CY2024Q3	us-gaap	Unrealized Gain Loss On Investments UnrealizedGainLossOnInvestments	-9863000	usd
CY2023Q3	us-gaap	Unrealized Gain Loss On Investments UnrealizedGainLossOnInvestments	-49580000	usd
	us-gaap	Unrealized Gain Loss On Investments UnrealizedGainLossOnInvestments	-43672000	usd
	us-gaap	Unrealized Gain Loss On Investments UnrealizedGainLossOnInvestments	-84491000	usd
CY2024Q3	us-gaap	Unrealized Gain Loss On Derivatives UnrealizedGainLossOnDerivatives	-238000	usd
CY2023Q3	us-gaap	Unrealized Gain Loss On Derivatives UnrealizedGainLossOnDerivatives	-803000	usd
	us-gaap	Unrealized Gain Loss On Derivatives UnrealizedGainLossOnDerivatives	-13000	usd
	us-gaap	Unrealized Gain Loss On Derivatives UnrealizedGainLossOnDerivatives	400000	usd
CY2024Q3	us-gaap	Foreign Currency Transaction Gain Loss Unrealized After Tax ForeignCurrencyTransactionGainLossUnrealizedAfterTax	4000	usd
CY2023Q3	us-gaap	Foreign Currency Transaction Gain Loss Unrealized After Tax ForeignCurrencyTransactionGainLossUnrealizedAfterTax	-7000	usd
	us-gaap	Foreign Currency Transaction Gain Loss Unrealized After Tax ForeignCurrencyTransactionGainLossUnrealizedAfterTax	-9000	usd
	us-gaap	Foreign Currency Transaction Gain Loss Unrealized After Tax ForeignCurrencyTransactionGainLossUnrealizedAfterTax	27000	usd
CY2024Q3	us-gaap	Net Income Loss NetIncomeLoss	13837000	usd
CY2023Q3	us-gaap	Net Income Loss NetIncomeLoss	-27423000	usd
	us-gaap	Net Income Loss NetIncomeLoss	73422000	usd
	us-gaap	Net Income Loss NetIncomeLoss	-84628000	usd
CY2024Q3	us-gaap	Investment Company Dividend Distribution InvestmentCompanyDividendDistribution	39492000	usd
CY2023Q3	us-gaap	Investment Company Dividend Distribution InvestmentCompanyDividendDistribution	0	usd
	us-gaap	Investment Company Dividend Distribution InvestmentCompanyDividendDistribution	80488000	usd
	us-gaap	Investment Company Dividend Distribution InvestmentCompanyDividendDistribution	27208000	usd
CY2024Q3	fssl	Investment Company Dividend Distribution Increase Decrease InvestmentCompanyDividendDistributionIncreaseDecrease	39492000	usd
CY2023Q3	fssl	Investment Company Dividend Distribution Increase Decrease InvestmentCompanyDividendDistributionIncreaseDecrease	0	usd
	fssl	Investment Company Dividend Distribution Increase Decrease InvestmentCompanyDividendDistributionIncreaseDecrease	80488000	usd
	fssl	Investment Company Dividend Distribution Increase Decrease InvestmentCompanyDividendDistributionIncreaseDecrease	27208000	usd
CY2024Q3	us-gaap	Stock Issued During Period Value Dividend Reinvestment Plan StockIssuedDuringPeriodValueDividendReinvestmentPlan	0	usd
CY2023Q3	us-gaap	Stock Issued During Period Value Dividend Reinvestment Plan StockIssuedDuringPeriodValueDividendReinvestmentPlan	5161000	usd
	us-gaap	Stock Issued During Period Value Dividend Reinvestment Plan StockIssuedDuringPeriodValueDividendReinvestmentPlan	0	usd
	us-gaap	Stock Issued During Period Value Dividend Reinvestment Plan StockIssuedDuringPeriodValueDividendReinvestmentPlan	15549000	usd
CY2023Q3	fssl	Investment Company Capital Transactions Increase Decrease InvestmentCompanyCapitalTransactionsIncreaseDecrease	5161000	usd
	fssl	Investment Company Capital Transactions Increase Decrease InvestmentCompanyCapitalTransactionsIncreaseDecrease	0	usd
	fssl	Investment Company Capital Transactions Increase Decrease InvestmentCompanyCapitalTransactionsIncreaseDecrease	15549000	usd
CY2024Q3	us-gaap	Stockholders Equity Period Increase Decrease StockholdersEquityPeriodIncreaseDecrease	-25655000	usd
CY2023Q3	us-gaap	Stockholders Equity Period Increase Decrease StockholdersEquityPeriodIncreaseDecrease	-22262000	usd
	us-gaap	Stockholders Equity Period Increase Decrease StockholdersEquityPeriodIncreaseDecrease	-7066000	usd
	us-gaap	Stockholders Equity Period Increase Decrease StockholdersEquityPeriodIncreaseDecrease	-96287000	usd
CY2024Q2	us-gaap	Stockholders Equity StockholdersEquity	1580644000	usd
CY2023Q2	us-gaap	Stockholders Equity StockholdersEquity	1679723000	usd
CY2023Q4	us-gaap	Stockholders Equity StockholdersEquity	1562055000	usd
CY2022Q4	us-gaap	Stockholders Equity StockholdersEquity	1753748000	usd
CY2023Q3	us-gaap	Stockholders Equity StockholdersEquity	1657461000	usd
CY2024Q3	us-gaap	Stockholders Equity StockholdersEquity	1554989000	usd
CY2023Q3	us-gaap	Stockholders Equity StockholdersEquity	1657461000	usd
	us-gaap	Net Income Loss NetIncomeLoss	73422000	usd
	us-gaap	Net Income Loss NetIncomeLoss	-84628000	usd
	us-gaap	Payments For Purchase Of Investment Operating Activity PaymentsForPurchaseOfInvestmentOperatingActivity	922131000	usd
	us-gaap	Payments For Purchase Of Investment Operating Activity PaymentsForPurchaseOfInvestmentOperatingActivity	253471000	usd
	us-gaap	Interest Income Operating Paid In Kind InterestIncomeOperatingPaidInKind	8681000	usd
	us-gaap	Interest Income Operating Paid In Kind InterestIncomeOperatingPaidInKind	14174000	usd
	us-gaap	Proceeds From Disposition Of Investment Operating Activity ProceedsFromDispositionOfInvestmentOperatingActivity	706762000	usd
	us-gaap	Proceeds From Disposition Of Investment Operating Activity ProceedsFromDispositionOfInvestmentOperatingActivity	685682000	usd
	us-gaap	Proceeds From Sale Of Short Term Investments ProceedsFromSaleOfShortTermInvestments	22865000	usd
	us-gaap	Proceeds From Sale Of Short Term Investments ProceedsFromSaleOfShortTermInvestments	0	usd
	us-gaap	Debt And Equity Securities Realized Gain Loss DebtAndEquitySecuritiesRealizedGainLoss	4461000	usd
	us-gaap	Debt And Equity Securities Realized Gain Loss DebtAndEquitySecuritiesRealizedGainLoss	-56305000	usd
	us-gaap	Debt And Equity Securities Unrealized Gain Loss DebtAndEquitySecuritiesUnrealizedGainLoss	-43672000	usd
	us-gaap	Unrealized Gain Loss On Derivatives UnrealizedGainLossOnDerivatives	-13000	usd
	us-gaap	Unrealized Gain Loss On Derivatives UnrealizedGainLossOnDerivatives	400000	usd
	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	6882000	usd
	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	4484000	usd
	us-gaap	Amortization Of Financing Costs And Discounts AmortizationOfFinancingCostsAndDiscounts	1555000	usd
	us-gaap	Amortization Of Financing Costs And Discounts AmortizationOfFinancingCostsAndDiscounts	2903000	usd
	us-gaap	Increase Decrease In Receivable For Investment Sold IncreaseDecreaseInReceivableForInvestmentSold	-26373000	usd
	us-gaap	Increase Decrease In Receivable For Investment Sold IncreaseDecreaseInReceivableForInvestmentSold	-6246000	usd
	us-gaap	Increase Decrease In Accrued Interest Receivable Net IncreaseDecreaseInAccruedInterestReceivableNet	2253000	usd
	us-gaap	Increase Decrease In Accrued Interest Receivable Net IncreaseDecreaseInAccruedInterestReceivableNet	-11413000	usd
	us-gaap	Increase Decrease In Dividends Receivable IncreaseDecreaseInDividendsReceivable	-8000	usd
	us-gaap	Increase Decrease In Dividends Receivable IncreaseDecreaseInDividendsReceivable	-527000	usd
	fssl	Increase Decrease In Derivative Income Receivable IncreaseDecreaseInDerivativeIncomeReceivable	592000	usd
	fssl	Increase Decrease In Derivative Income Receivable IncreaseDecreaseInDerivativeIncomeReceivable	-54000	usd
	fssl	Increase Decrease In Derivative Income Payable IncreaseDecreaseInDerivativeIncomePayable	4000	usd
	us-gaap	Increase Decrease In Management Fee Payable IncreaseDecreaseInManagementFeePayable	345000	usd
	us-gaap	Increase Decrease In Management Fee Payable IncreaseDecreaseInManagementFeePayable	-3470000	usd
	fssl	Increase Decrease In Administrative Fee Payable IncreaseDecreaseInAdministrativeFeePayable	1078000	usd
	fssl	Increase Decrease In Administrative Fee Payable IncreaseDecreaseInAdministrativeFeePayable	18000	usd
	us-gaap	Increase Decrease In Interest Payable Net IncreaseDecreaseInInterestPayableNet	-262000	usd
	us-gaap	Increase Decrease In Interest Payable Net IncreaseDecreaseInInterestPayableNet	-12758000	usd
	us-gaap	Increase Decrease In Incentive Fee Payable IncreaseDecreaseInIncentiveFeePayable	0	usd
	us-gaap	Increase Decrease In Incentive Fee Payable IncreaseDecreaseInIncentiveFeePayable	-1000	usd
	us-gaap	Increase Decrease In Other Accrued Liabilities IncreaseDecreaseInOtherAccruedLiabilities	-655000	usd
	us-gaap	Increase Decrease In Other Accrued Liabilities IncreaseDecreaseInOtherAccruedLiabilities	-1621000	usd
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-110203000	usd
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	523670000	usd
	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	108228000	usd
	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	25202000	usd
CY2022Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	481655000	usd
CY2024Q3	us-gaap	Investment Basis Spread Variable Rate InvestmentBasisSpreadVariableRate	0.0325
CY2024Q3	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	19950000	usd
CY2024Q3	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	3534000	usd
CY2024Q3	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	3534000	usd
CY2024Q3	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	3446000	usd
CY2024Q3	us-gaap	Investment Basis Spread Variable Rate InvestmentBasisSpreadVariableRate	0.0750
CY2024Q3	us-gaap	Investment Interest Rate InvestmentInterestRate	0.0600
CY2024Q3	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	24938000	usd
CY2024Q3	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	24702000	usd
CY2024Q3	us-gaap	Investment Interest Rate InvestmentInterestRate	0.070
CY2024Q3	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	11238000	usd
CY2024Q3	us-gaap	Investment Interest Rate InvestmentInterestRate	0.063
CY2024Q3	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	9834000	usd
CY2024Q3	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	9828000	usd
CY2024Q3	us-gaap	Investment Interest Rate InvestmentInterestRate	0.099
CY2024Q3	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	9533000	usd
CY2024Q3	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	37279000	usd
CY2024Q3	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	42739000	usd
CY2023Q4	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	20033000	usd
CY2023Q4	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	20251000	usd
CY2023Q4	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	21805000	usd
CY2023Q4	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	21036000	usd
CY2023Q4	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	20380000	usd
CY2023Q4	us-gaap	Investment Basis Spread Variable Rate InvestmentBasisSpreadVariableRate	0.0400
CY2023Q4	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	19335000	usd
CY2023Q4	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	19106000	usd
CY2023Q4	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	2652000	usd
CY2023Q4	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	0	usd
CY2023Q4	us-gaap	Investment Owned Balance Shares InvestmentOwnedBalanceShares	3750000	shares
CY2023Q4	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	6029000	usd
CY2023Q4	us-gaap	Investment Owned Balance Shares InvestmentOwnedBalanceShares	48400	shares
CY2023Q4	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	1527000	usd
CY2023Q4	us-gaap	Investment Owned Balance Shares InvestmentOwnedBalanceShares	22000	shares
CY2023Q4	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	0	usd
CY2023Q4	us-gaap	Investment Owned Balance Shares InvestmentOwnedBalanceShares	126632117	shares
CY2023Q4	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	351000	usd
CY2023Q4	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	571000	usd
CY2023Q4	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	3083000	usd
CY2023Q4	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	2682000	usd
CY2023Q4	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	15566000	usd
CY2023Q2	us-gaap	Investment Company Dividend Distribution InvestmentCompanyDividendDistribution	13624000	usd
	dei	Document Type DocumentType	10-Q
CY2024Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	235083000	usd
CY2024Q3	fssl	Derivative Income Receivable DerivativeIncomeReceivable	628000	usd
CY2023Q4	fssl	Derivative Income Receivable DerivativeIncomeReceivable	36000	usd
CY2024Q3	us-gaap	Prepaid Expense And Other Assets PrepaidExpenseAndOtherAssets	128000	usd
CY2024Q3	us-gaap	Derivative Liabilities DerivativeLiabilities	13000	usd
CY2023Q4	us-gaap	Derivative Liabilities DerivativeLiabilities	0	usd
CY2023Q4	us-gaap	Incentive Fee Payable IncentiveFeePayable	164000	usd
CY2023Q3	us-gaap	Other General And Administrative Expense OtherGeneralAndAdministrativeExpense	1486000	usd
CY2023Q3	us-gaap	Investment Income Operating Tax Expense Benefit InvestmentIncomeOperatingTaxExpenseBenefit	834000	usd
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.19
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.19
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	455506155	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	454052204	shares
CY2024Q3	us-gaap	Investment Income Operating After Expense And Tax InvestmentIncomeOperatingAfterExpenseAndTax	30934000	usd
CY2024Q3	fssl	Investment Company Capital Transactions Increase Decrease InvestmentCompanyCapitalTransactionsIncreaseDecrease	0	usd
CY2024Q3	us-gaap	Stockholders Equity StockholdersEquity	1554989000	usd
	us-gaap	Debt And Equity Securities Unrealized Gain Loss DebtAndEquitySecuritiesUnrealizedGainLoss	-84491000	usd
	us-gaap	Proceeds From Long Term Lines Of Credit ProceedsFromLongTermLinesOfCredit	0	usd
	us-gaap	Proceeds From Long Term Lines Of Credit ProceedsFromLongTermLinesOfCredit	80000000	usd
	us-gaap	Repayments Of Long Term Lines Of Credit RepaymentsOfLongTermLinesOfCredit	0	usd
	us-gaap	Repayments Of Long Term Lines Of Credit RepaymentsOfLongTermLinesOfCredit	305676000	usd
	us-gaap	Repayments Of Senior Debt RepaymentsOfSeniorDebt	0	usd
	us-gaap	Repayments Of Senior Debt RepaymentsOfSeniorDebt	457075000	usd
	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	0	usd
	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	5634000	usd
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-108228000	usd
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-713587000	usd
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-218431000	usd
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-189917000	usd
CY2023Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	492758000	usd
CY2024Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	274327000	usd
CY2023Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	291738000	usd
	us-gaap	Stock Issued1 StockIssued1	0	usd
	us-gaap	Stock Issued1 StockIssued1	15549000	usd
	us-gaap	Transfer To Investments TransferToInvestments	71247000	usd
	us-gaap	Transfer To Investments TransferToInvestments	3284000	usd
	us-gaap	Transfer Of Investments TransferOfInvestments	71247000	usd
	us-gaap	Transfer Of Investments TransferOfInvestments	3284000	usd
	us-gaap	Income Taxes Paid IncomeTaxesPaid	1374000	usd
	us-gaap	Income Taxes Paid IncomeTaxesPaid	3596000	usd
	us-gaap	Interest Paid Net InterestPaidNet	25917000	usd
	us-gaap	Interest Paid Net InterestPaidNet	28921000	usd
CY2024Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	235083000	usd
CY2023Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	289738000	usd
CY2024Q3	us-gaap	Restricted Cash RestrictedCash	39244000	usd
CY2023Q3	us-gaap	Restricted Cash RestrictedCash	2000000	usd
CY2024Q3	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	26595000	usd
CY2024Q3	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	25844000	usd
CY2024Q3	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	25999000	usd
CY2024Q3	us-gaap	Investment Basis Spread Variable Rate InvestmentBasisSpreadVariableRate	0.0375
CY2024Q3	us-gaap	Investment Interest Rate Floor InvestmentInterestRateFloor	0.008
CY2024Q3	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	23799000	usd
CY2024Q3	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	23560000	usd
CY2024Q3	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	23933000	usd
CY2024Q3	us-gaap	Investment Interest Rate Floor InvestmentInterestRateFloor	0.015
CY2024Q3	us-gaap	Investment Interest Rate Floor InvestmentInterestRateFloor	0.015
CY2024Q3	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	36323000	usd
CY2024Q3	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	35432000	usd
CY2024Q3	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	35415000	usd
CY2024Q3	us-gaap	Investment Basis Spread Variable Rate InvestmentBasisSpreadVariableRate	0.0675
CY2024Q3	us-gaap	Investment Interest Rate Floor InvestmentInterestRateFloor	0.015
CY2024Q3	us-gaap	Investment Basis Spread Variable Rate InvestmentBasisSpreadVariableRate	0.0425
CY2024Q3	us-gaap	Investment Basis Spread Variable Rate InvestmentBasisSpreadVariableRate	0.0375
CY2024Q3	us-gaap	Investment Interest Rate Floor InvestmentInterestRateFloor	0.005
CY2024Q3	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	20748000	usd
CY2024Q3	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	18817000	usd
CY2024Q3	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	20315000	usd
CY2024Q3	us-gaap	Investment Basis Spread Variable Rate InvestmentBasisSpreadVariableRate	0.0400
CY2024Q3	us-gaap	Investment Interest Rate Floor InvestmentInterestRateFloor	0.005
CY2024Q3	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	22288000	usd
CY2024Q3	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	22359000	usd
CY2024Q3	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	22323000	usd
CY2024Q3	us-gaap	Investment Basis Spread Variable Rate InvestmentBasisSpreadVariableRate	0.0600
CY2024Q3	us-gaap	Investment Interest Rate Floor InvestmentInterestRateFloor	0.005
CY2024Q3	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	27622000	usd
CY2024Q3	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	24430000	usd
CY2024Q3	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	17525000	usd
CY2024Q3	us-gaap	Investment Basis Spread Variable Rate InvestmentBasisSpreadVariableRate	0.0475
CY2024Q3	us-gaap	Investment Interest Rate Floor InvestmentInterestRateFloor	0.005
CY2024Q3	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	17755000	usd
CY2024Q3	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	17844000	usd
CY2024Q3	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	17913000	usd
CY2024Q3	us-gaap	Investment Basis Spread Variable Rate InvestmentBasisSpreadVariableRate	0.0600
CY2024Q3	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	16000000	usd
CY2024Q3	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	15720000	usd
CY2024Q3	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	16120000	usd
CY2024Q3	us-gaap	Investment Basis Spread Variable Rate InvestmentBasisSpreadVariableRate	0.0650
CY2024Q3	us-gaap	Investment Interest Rate Floor InvestmentInterestRateFloor	0.010
CY2024Q3	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	2145000	usd
CY2024Q3	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	2151000	usd
CY2024Q3	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	2179000	usd
CY2024Q3	us-gaap	Investment Basis Spread Variable Rate InvestmentBasisSpreadVariableRate	0.0650
CY2024Q3	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	12500000	usd
CY2024Q3	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	12307000	usd
CY2024Q3	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	12489000	usd
CY2024Q3	us-gaap	Investment Basis Spread Variable Rate InvestmentBasisSpreadVariableRate	0.0475
CY2024Q3	us-gaap	Investment Interest Rate Floor InvestmentInterestRateFloor	0.010
CY2024Q3	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	12739000	usd
CY2024Q3	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	12495000	usd
CY2024Q3	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	12495000	usd
CY2024Q3	us-gaap	Investment Basis Spread Variable Rate InvestmentBasisSpreadVariableRate	0.0475
CY2024Q3	us-gaap	Investment Interest Rate Floor InvestmentInterestRateFloor	0.010
CY2024Q3	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	9762000	usd
CY2024Q3	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	9762000	usd
CY2024Q3	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	9762000	usd
CY2024Q3	us-gaap	Investment Basis Spread Variable Rate InvestmentBasisSpreadVariableRate	0.0450
CY2024Q3	us-gaap	Investment Interest Rate Floor InvestmentInterestRateFloor	0.005
CY2024Q3	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	24813000	usd
CY2024Q3	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	24879000	usd
CY2024Q3	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	23616000	usd
CY2024Q3	us-gaap	Investment Basis Spread Variable Rate InvestmentBasisSpreadVariableRate	0.0400
CY2024Q3	us-gaap	Investment Interest Rate Floor InvestmentInterestRateFloor	0.008
CY2024Q3	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	5985000	usd
CY2024Q3	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	5929000	usd
CY2024Q3	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	6029000	usd
CY2024Q3	us-gaap	Investment Basis Spread Variable Rate InvestmentBasisSpreadVariableRate	0.0500
CY2024Q3	us-gaap	Investment Interest Rate Floor InvestmentInterestRateFloor	0.005
CY2024Q3	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	24875000	usd
CY2024Q3	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	24802000	usd
CY2024Q3	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	25019000	usd
CY2024Q3	us-gaap	Investment Basis Spread Variable Rate InvestmentBasisSpreadVariableRate	0.0515
CY2024Q3	us-gaap	Investment Interest Rate Paid In Kind InvestmentInterestRatePaidInKind	0.015
CY2024Q3	us-gaap	Investment Interest Rate Floor InvestmentInterestRateFloor	0.005
CY2024Q3	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	20154000	usd
CY2024Q3	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	19486000	usd
CY2024Q3	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	19983000	usd
CY2024Q3	us-gaap	Investment Basis Spread Variable Rate InvestmentBasisSpreadVariableRate	0.0650
CY2024Q3	us-gaap	Investment Interest Rate Floor InvestmentInterestRateFloor	0.020
CY2024Q3	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	47282000	usd
CY2024Q3	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	46390000	usd
CY2024Q3	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	46395000	usd
CY2024Q3	us-gaap	Investment Basis Spread Variable Rate InvestmentBasisSpreadVariableRate	0.0650
CY2024Q3	us-gaap	Investment Interest Rate Floor InvestmentInterestRateFloor	0.020
CY2024Q3	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	2600000	usd
CY2024Q3	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	2600000	usd
CY2024Q3	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	2551000	usd
CY2024Q3	us-gaap	Investment Basis Spread Variable Rate InvestmentBasisSpreadVariableRate	0.0375
CY2024Q3	us-gaap	Investment Interest Rate Floor InvestmentInterestRateFloor	0.008
CY2024Q3	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	24733000	usd
CY2024Q3	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	24673000	usd
CY2024Q3	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	24845000	usd
CY2024Q3	us-gaap	Investment Basis Spread Variable Rate InvestmentBasisSpreadVariableRate	0.0500
CY2024Q3	us-gaap	Investment Interest Rate Floor InvestmentInterestRateFloor	0.010
CY2024Q3	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	24713000	usd
CY2024Q3	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	24478000	usd
CY2024Q3	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	24493000	usd
CY2024Q3	us-gaap	Investment Basis Spread Variable Rate InvestmentBasisSpreadVariableRate	0.078
CY2024Q3	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	7523000	usd
CY2024Q3	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	7487000	usd
CY2024Q3	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	7379000	usd
CY2024Q3	us-gaap	Investment Basis Spread Variable Rate InvestmentBasisSpreadVariableRate	0.0550
CY2024Q3	us-gaap	Investment Interest Rate Floor InvestmentInterestRateFloor	0.010
CY2024Q3	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	23513000	usd
CY2024Q3	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	22955000	usd
CY2024Q3	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	23042000	usd
CY2024Q3	us-gaap	Investment Basis Spread Variable Rate InvestmentBasisSpreadVariableRate	0.0550
CY2024Q3	us-gaap	Investment Interest Rate Floor InvestmentInterestRateFloor	0.010
CY2024Q3	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	9428000	usd
CY2024Q3	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	9428000	usd
CY2024Q3	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	9240000	usd
CY2024Q3	us-gaap	Investment Basis Spread Variable Rate InvestmentBasisSpreadVariableRate	0.0750
CY2024Q3	us-gaap	Investment Interest Rate Floor InvestmentInterestRateFloor	0.020
CY2024Q3	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	30442000	usd
CY2024Q3	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	29915000	usd
CY2024Q3	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	30480000	usd
CY2024Q3	us-gaap	Investment Basis Spread Variable Rate InvestmentBasisSpreadVariableRate	0.0350
CY2024Q3	us-gaap	Investment Interest Rate Floor InvestmentInterestRateFloor	0.005
CY2024Q3	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	24738000	usd
CY2024Q3	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	24765000	usd
CY2024Q3	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	24622000	usd
CY2024Q3	us-gaap	Investment Basis Spread Variable Rate InvestmentBasisSpreadVariableRate	0.0450
CY2024Q3	us-gaap	Investment Interest Rate Floor InvestmentInterestRateFloor	0.005
CY2024Q3	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	24674000	usd
CY2024Q3	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	24049000	usd
CY2024Q3	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	24166000	usd
CY2024Q3	us-gaap	Investment Basis Spread Variable Rate InvestmentBasisSpreadVariableRate	0.0400
CY2024Q3	us-gaap	Investment Interest Rate Floor InvestmentInterestRateFloor	0.005
CY2024Q3	us-gaap	Investment Basis Spread Variable Rate InvestmentBasisSpreadVariableRate	0.0656
CY2024Q3	us-gaap	Investment Interest Rate Floor InvestmentInterestRateFloor	0.020
CY2024Q3	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	19727000	usd
CY2024Q3	us-gaap	Investment Interest Rate Floor InvestmentInterestRateFloor	0.005
CY2024Q3	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	30000000	usd
CY2024Q3	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	27927000	usd
CY2024Q3	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	28875000	usd
CY2024Q3	us-gaap	Investment Basis Spread Variable Rate InvestmentBasisSpreadVariableRate	0.0350
CY2024Q3	us-gaap	Investment Basis Spread Variable Rate InvestmentBasisSpreadVariableRate	0.1100
CY2024Q3	us-gaap	Investment Interest Rate Floor InvestmentInterestRateFloor	0.015
CY2024Q3	us-gaap	Investment Interest Rate Paid In Kind InvestmentInterestRatePaidInKind	0.200
CY2024Q3	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	4975000	usd
CY2024Q3	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	25081000	usd
CY2024Q3	us-gaap	Investment Interest Rate Paid In Kind InvestmentInterestRatePaidInKind	0.020
CY2024Q3	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	2882000	usd
CY2024Q3	us-gaap	Investment Interest Rate Paid In Kind InvestmentInterestRatePaidInKind	0.095
CY2024Q3	us-gaap	Investment Interest Rate Paid In Kind InvestmentInterestRatePaidInKind	0.100
CY2024Q3	us-gaap	Investment Interest Rate InvestmentInterestRate	0.100
CY2024Q3	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	2344000	usd
CY2024Q3	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	2344000	usd
CY2024Q3	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	0	usd
CY2024Q3	us-gaap	Investment Interest Rate InvestmentInterestRate	0.0300
CY2024Q3	us-gaap	Investment Interest Rate Floor InvestmentInterestRateFloor	0.008
CY2024Q3	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	19897000	usd
CY2024Q3	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	18863000	usd
CY2024Q3	us-gaap	Investment Basis Spread Variable Rate InvestmentBasisSpreadVariableRate	0.0250
CY2024Q3	us-gaap	Investment Interest Rate Paid In Kind InvestmentInterestRatePaidInKind	0.025
CY2024Q3	us-gaap	Investment Interest Rate Floor InvestmentInterestRateFloor	0.010
CY2024Q3	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	32788000	usd
CY2024Q3	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	32326000	usd
CY2024Q3	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	33454000	usd
CY2024Q3	us-gaap	Investment Basis Spread Variable Rate InvestmentBasisSpreadVariableRate	0.0350
CY2024Q3	us-gaap	Investment Interest Rate Floor InvestmentInterestRateFloor	0.010
CY2024Q3	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	17380000	usd
CY2024Q3	us-gaap	Investment Basis Spread Variable Rate InvestmentBasisSpreadVariableRate	0.0400
CY2024Q3	us-gaap	Investment Interest Rate Floor InvestmentInterestRateFloor	0.008
CY2024Q3	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	22828000	usd
CY2024Q3	us-gaap	Investment Basis Spread Variable Rate InvestmentBasisSpreadVariableRate	0.0350
CY2024Q3	us-gaap	Investment Interest Rate Floor InvestmentInterestRateFloor	0.008
CY2024Q3	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	24756000	usd
CY2024Q3	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	24025000	usd
CY2024Q3	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	24398000	usd
CY2024Q3	us-gaap	Investment Interest Rate InvestmentInterestRate	0.0688
CY2024Q3	us-gaap	Investment Interest Rate Floor InvestmentInterestRateFloor	0.010
CY2024Q3	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	15000000	usd
CY2024Q3	us-gaap	Investment Interest Rate InvestmentInterestRate	0.0500
CY2024Q3	us-gaap	Investment Interest Rate Floor InvestmentInterestRateFloor	0.010
CY2024Q3	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	21970000	usd
CY2024Q3	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	21599000	usd
CY2024Q3	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	21640000	usd
CY2024Q3	us-gaap	Investment Interest Rate InvestmentInterestRate	0.0550
CY2024Q3	us-gaap	Investment Interest Rate Floor InvestmentInterestRateFloor	0.010
CY2024Q3	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	3030000	usd
CY2024Q3	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	3030000	usd
CY2024Q3	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	2985000	usd
CY2024Q3	us-gaap	Investment Basis Spread Variable Rate InvestmentBasisSpreadVariableRate	0.0350
CY2024Q3	us-gaap	Investment Interest Rate Floor InvestmentInterestRateFloor	0.005
CY2024Q3	us-gaap	Investment Basis Spread Variable Rate InvestmentBasisSpreadVariableRate	0.0350
CY2024Q3	us-gaap	Investment Interest Rate Floor InvestmentInterestRateFloor	0.005
CY2024Q3	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	1036000	usd
CY2024Q3	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	1036000	usd
CY2024Q3	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	1026000	usd
CY2024Q3	us-gaap	Investment Basis Spread Variable Rate InvestmentBasisSpreadVariableRate	0.0425
CY2024Q3	us-gaap	Investment Interest Rate Floor InvestmentInterestRateFloor
CY2024Q3	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	8955000	usd
CY2024Q3	us-gaap	Investment Basis Spread Variable Rate InvestmentBasisSpreadVariableRate	0.0550
CY2024Q3	us-gaap	Investment Interest Rate Floor InvestmentInterestRateFloor	0.010
CY2024Q3	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	24309000	usd
CY2024Q3	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	23381000	usd
CY2024Q3	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	24294000	usd
CY2024Q3	us-gaap	Investment Basis Spread Variable Rate InvestmentBasisSpreadVariableRate	0.0400
CY2024Q3	us-gaap	Investment Interest Rate Floor InvestmentInterestRateFloor	0.008
CY2024Q3	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	24718000	usd
CY2024Q3	us-gaap	Investment Basis Spread Variable Rate InvestmentBasisSpreadVariableRate	0.0475
CY2024Q3	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	20948000	usd
CY2024Q3	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	20546000	usd
CY2024Q3	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	21052000	usd
CY2024Q3	us-gaap	Investment Basis Spread Variable Rate InvestmentBasisSpreadVariableRate	0.0425
CY2024Q3	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	6971000	usd
CY2024Q3	us-gaap	Investment Basis Spread Variable Rate InvestmentBasisSpreadVariableRate	0.0325
CY2024Q3	us-gaap	Investment Interest Rate Floor InvestmentInterestRateFloor	0.008
CY2024Q3	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	26119000	usd
CY2024Q3	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	24094000	usd
CY2024Q3	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	24708000	usd
CY2024Q3	us-gaap	Investment Basis Spread Variable Rate InvestmentBasisSpreadVariableRate	0.0600
CY2024Q3	us-gaap	Investment Interest Rate Floor InvestmentInterestRateFloor	0.010
CY2024Q3	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	1771000	usd
CY2024Q3	us-gaap	Investment Basis Spread Variable Rate InvestmentBasisSpreadVariableRate	0.0600
CY2024Q3	us-gaap	Investment Interest Rate Floor InvestmentInterestRateFloor	0.010
CY2024Q3	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	31547000	usd
CY2024Q3	us-gaap	Investment Basis Spread Variable Rate InvestmentBasisSpreadVariableRate	0.0600
CY2024Q3	us-gaap	Investment Interest Rate Floor InvestmentInterestRateFloor	0.010
CY2024Q3	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	1602000	usd
CY2024Q3	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	1602000	usd
CY2024Q3	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	1570000	usd
CY2024Q3	us-gaap	Investment Basis Spread Variable Rate InvestmentBasisSpreadVariableRate	0.0650
CY2024Q3	us-gaap	Investment Interest Rate Floor InvestmentInterestRateFloor	0.030
CY2024Q3	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	31050000	usd
CY2024Q3	us-gaap	Investment Basis Spread Variable Rate InvestmentBasisSpreadVariableRate	0.0650
CY2024Q3	us-gaap	Investment Interest Rate Floor InvestmentInterestRateFloor	0.030
CY2024Q3	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	3583000	usd
CY2024Q3	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	3583000	usd
CY2024Q3	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	3512000	usd
CY2024Q3	us-gaap	Investment Basis Spread Variable Rate InvestmentBasisSpreadVariableRate	0.0750
CY2024Q3	us-gaap	Investment Interest Rate Floor InvestmentInterestRateFloor	0.010
CY2024Q3	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	32000000	usd
CY2024Q3	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	31612000	usd
CY2024Q3	us-gaap	Investment Interest Rate Paid In Kind InvestmentInterestRatePaidInKind	0.150
CY2024Q3	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	30833000	usd
CY2024Q3	us-gaap	Investment Basis Spread Variable Rate InvestmentBasisSpreadVariableRate	0.0750
CY2024Q3	us-gaap	Investment Interest Rate Floor InvestmentInterestRateFloor	0.010
CY2024Q3	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	20537000	usd
CY2024Q3	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	20537000	usd
CY2024Q3	us-gaap	Investment Interest Rate InvestmentInterestRate	0.073
CY2024Q3	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	12271000	usd
CY2024Q3	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	11357000	usd
CY2024Q3	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	12179000	usd
CY2024Q3	us-gaap	Investment Interest Rate InvestmentInterestRate	0.100
CY2024Q3	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	2000000	usd
CY2024Q3	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	2000000	usd
CY2024Q3	us-gaap	Investment Interest Rate InvestmentInterestRate	0.083
CY2024Q3	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	25742000	usd
CY2024Q3	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	23663000	usd
CY2024Q3	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	25799000	usd
CY2024Q3	us-gaap	Investment Interest Rate InvestmentInterestRate	0.085
CY2024Q3	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	23568000	usd
CY2024Q3	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	20600000	usd
CY2024Q3	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	10199000	usd
CY2024Q3	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	9625000	usd
CY2024Q3	us-gaap	Investment Interest Rate Paid In Kind InvestmentInterestRatePaidInKind	0.040
CY2024Q3	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	31163000	usd
CY2024Q3	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	27951000	usd
CY2024Q3	us-gaap	Investment Interest Rate Paid In Kind InvestmentInterestRatePaidInKind	0.116
CY2024Q3	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	35167000	usd
CY2024Q3	us-gaap	Investment Interest Rate InvestmentInterestRate	0.182
CY2024Q3	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	23700000	usd
CY2024Q3	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	23489000	usd
CY2024Q3	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	21580000	usd
CY2024Q3	us-gaap	Investment Interest Rate InvestmentInterestRate	0.029
CY2024Q3	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	5000000	usd
CY2024Q3	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	5036000	usd
CY2024Q3	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	60603000	usd
CY2024Q3	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	43150000	usd
CY2024Q3	us-gaap	Investment Owned Balance Shares InvestmentOwnedBalanceShares	3750000	shares
CY2024Q3	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	5136000	usd
CY2024Q3	us-gaap	Investment Owned Balance Shares InvestmentOwnedBalanceShares	126632117	shares
CY2024Q3	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	351000	usd
CY2024Q3	us-gaap	Investment Owned Balance Shares InvestmentOwnedBalanceShares	1486929	shares
CY2024Q3	us-gaap	Investment Owned Balance Shares InvestmentOwnedBalanceShares	17183	shares
CY2024Q3	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	9806000	usd
CY2024Q3	us-gaap	Investment Owned Balance Shares InvestmentOwnedBalanceShares	105785	shares
CY2024Q3	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	6681000	usd
CY2024Q3	us-gaap	Investment Owned Balance Shares InvestmentOwnedBalanceShares	135062	shares
CY2024Q3	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	14418000	usd
CY2024Q3	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	365000	usd
CY2024Q3	us-gaap	Investment Owned Balance Shares InvestmentOwnedBalanceShares	503176	shares
CY2024Q3	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	93044000	usd
CY2024Q3	us-gaap	Investment Owned Balance Shares InvestmentOwnedBalanceShares	522382	shares
CY2024Q3	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	522000	usd
CY2024Q3	us-gaap	Investment Basis Spread Variable Rate InvestmentBasisSpreadVariableRate	0.0700
CY2024Q3	us-gaap	Investment Owned Balance Shares InvestmentOwnedBalanceShares	24150	shares
CY2024Q3	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	26177000	usd
CY2024Q3	fssl	Investment Strike Price InvestmentStrikePrice	14.54
CY2024Q3	us-gaap	Investment Owned Balance Shares InvestmentOwnedBalanceShares	2187500	shares
CY2024Q3	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	3083000	usd
CY2024Q3	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	691000	usd
CY2024Q3	fssl	Investment Strike Price InvestmentStrikePrice	17.45
CY2024Q3	us-gaap	Investment Owned Balance Shares InvestmentOwnedBalanceShares	3125000	shares
CY2024Q3	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	2623000	usd
CY2024Q3	fssl	Investment Strike Price InvestmentStrikePrice	16.27
CY2024Q3	us-gaap	Investment Owned Balance Shares InvestmentOwnedBalanceShares	781250	shares
CY2024Q3	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	576000	usd
CY2024Q3	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	176000	usd
CY2024Q3	fssl	Investment Strike Price InvestmentStrikePrice	13.56
CY2024Q3	us-gaap	Investment Owned Balance Shares InvestmentOwnedBalanceShares	546880	shares
CY2024Q3	us-gaap	Investment Owned Balance Shares InvestmentOwnedBalanceShares	1968861	shares
CY2024Q3	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	5000	usd
CY2024Q3	us-gaap	Investment Owned Balance Shares InvestmentOwnedBalanceShares	50	shares
CY2024Q3	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	0	usd
CY2024Q3	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	0	usd
CY2024Q3	us-gaap	Investment Owned Balance Shares InvestmentOwnedBalanceShares	50	shares
CY2024Q3	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	7571000	usd
CY2024Q3	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	230000	usd
CY2024Q3	us-gaap	Investment Interest Rate InvestmentInterestRate	0.098
CY2024Q3	us-gaap	Investment Owned Balance Shares InvestmentOwnedBalanceShares	28561	shares
CY2024Q3	us-gaap	Investment Owned Percent Of Net Assets InvestmentOwnedPercentOfNetAssets	1.089
CY2024Q3	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	1692052000	usd
CY2024Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	235083000	usd
CY2024Q3	us-gaap	Non Investment Assets Less Non Investment Liabilities Percent Of Net Assets NonInvestmentAssetsLessNonInvestmentLiabilitiesPercentOfNetAssets	-0.240
CY2024Q3	us-gaap	Non Investment Assets Less Non Investment Liabilities NonInvestmentAssetsLessNonInvestmentLiabilities	-372146000	usd
CY2024Q3	us-gaap	Assets Net AssetsNet	1554989000	usd
CY2024Q3	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	21580000	usd
CY2024Q3	us-gaap	Derivative Net Assets Percentage DerivativeNetAssetsPercentage	0.014
CY2024Q3	us-gaap	Investment Interest Rate InvestmentInterestRate	0.0486
CY2024Q3	fssl	Qualifying Assets Percent Of Total Assets QualifyingAssetsPercentOfTotalAssets	0.825
CY2023Q4	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	4816000	usd
	us-gaap	Investments In And Advances To Affiliates At Fair Value Gross Additions InvestmentsInAndAdvancesToAffiliatesAtFairValueGrossAdditions	161000	usd
	us-gaap	Investments In And Advances To Affiliates At Fair Value Gross Reductions InvestmentsInAndAdvancesToAffiliatesAtFairValueGrossReductions	2045000	usd
	us-gaap	Debt And Equity Securities Realized Gain Loss DebtAndEquitySecuritiesRealizedGainLoss	148000	usd
	us-gaap	Debt And Equity Securities Unrealized Gain Loss DebtAndEquitySecuritiesUnrealizedGainLoss	-234000	usd
CY2024Q3	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	2846000	usd
	us-gaap	Interest Income Operating InterestIncomeOperating	378000	usd
	us-gaap	Interest Income Operating Paid In Kind InterestIncomeOperatingPaidInKind	63000	usd
CY2023Q4	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	0	usd
	us-gaap	Investments In And Advances To Affiliates At Fair Value Gross Additions InvestmentsInAndAdvancesToAffiliatesAtFairValueGrossAdditions	23711000	usd
	us-gaap	Investments In And Advances To Affiliates At Fair Value Gross Reductions InvestmentsInAndAdvancesToAffiliatesAtFairValueGrossReductions	222000	usd
	us-gaap	Debt And Equity Securities Realized Gain Loss DebtAndEquitySecuritiesRealizedGainLoss	0	usd
	us-gaap	Debt And Equity Securities Unrealized Gain Loss DebtAndEquitySecuritiesUnrealizedGainLoss	-1909000	usd
CY2024Q3	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	21580000	usd
	us-gaap	Interest Income Operating InterestIncomeOperating	1776000	usd
	us-gaap	Interest Income Operating Paid In Kind InterestIncomeOperatingPaidInKind	0	usd
	us-gaap	Investments In And Advances To Affiliates At Fair Value Gross Additions InvestmentsInAndAdvancesToAffiliatesAtFairValueGrossAdditions	22729000	usd
	us-gaap	Investments In And Advances To Affiliates At Fair Value Gross Reductions InvestmentsInAndAdvancesToAffiliatesAtFairValueGrossReductions	22729000	usd
	us-gaap	Debt And Equity Securities Realized Gain Loss DebtAndEquitySecuritiesRealizedGainLoss	0	usd
	us-gaap	Debt And Equity Securities Unrealized Gain Loss DebtAndEquitySecuritiesUnrealizedGainLoss	0	usd
	us-gaap	Interest Income Operating InterestIncomeOperating	0	usd
	us-gaap	Interest Income Operating Paid In Kind InterestIncomeOperatingPaidInKind	729000	usd
CY2023Q4	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	0	usd
	us-gaap	Investments In And Advances To Affiliates At Fair Value Gross Additions InvestmentsInAndAdvancesToAffiliatesAtFairValueGrossAdditions	5036000	usd
	us-gaap	Investments In And Advances To Affiliates At Fair Value Gross Reductions InvestmentsInAndAdvancesToAffiliatesAtFairValueGrossReductions	0	usd
	us-gaap	Debt And Equity Securities Realized Gain Loss DebtAndEquitySecuritiesRealizedGainLoss	0	usd
	us-gaap	Debt And Equity Securities Unrealized Gain Loss DebtAndEquitySecuritiesUnrealizedGainLoss	0	usd
CY2024Q3	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	5036000	usd
	us-gaap	Interest Income Operating InterestIncomeOperating	0	usd
	us-gaap	Interest Income Operating Paid In Kind InterestIncomeOperatingPaidInKind	36000	usd
	us-gaap	Investments In And Advances To Affiliates At Fair Value Gross Additions InvestmentsInAndAdvancesToAffiliatesAtFairValueGrossAdditions	0	usd
	us-gaap	Investments In And Advances To Affiliates At Fair Value Gross Reductions InvestmentsInAndAdvancesToAffiliatesAtFairValueGrossReductions	0	usd
	us-gaap	Debt And Equity Securities Realized Gain Loss DebtAndEquitySecuritiesRealizedGainLoss	0	usd
	us-gaap	Debt And Equity Securities Unrealized Gain Loss DebtAndEquitySecuritiesUnrealizedGainLoss	717000	usd
CY2024Q3	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	2378000	usd
	us-gaap	Interest Income Operating InterestIncomeOperating	0	usd
	us-gaap	Interest Income Operating Paid In Kind InterestIncomeOperatingPaidInKind	0	usd
	us-gaap	Investments In And Advances To Affiliates At Fair Value Gross Additions InvestmentsInAndAdvancesToAffiliatesAtFairValueGrossAdditions	0	usd
	us-gaap	Investments In And Advances To Affiliates At Fair Value Gross Reductions InvestmentsInAndAdvancesToAffiliatesAtFairValueGrossReductions	0	usd
	us-gaap	Debt And Equity Securities Realized Gain Loss DebtAndEquitySecuritiesRealizedGainLoss	0	usd
	us-gaap	Debt And Equity Securities Unrealized Gain Loss DebtAndEquitySecuritiesUnrealizedGainLoss	94000	usd
	us-gaap	Interest Income Operating InterestIncomeOperating	0	usd
	us-gaap	Interest Income Operating Paid In Kind InterestIncomeOperatingPaidInKind	0	usd
CY2023Q4	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	748000	usd
	us-gaap	Investments In And Advances To Affiliates At Fair Value Gross Additions InvestmentsInAndAdvancesToAffiliatesAtFairValueGrossAdditions	0	usd
	us-gaap	Investments In And Advances To Affiliates At Fair Value Gross Reductions InvestmentsInAndAdvancesToAffiliatesAtFairValueGrossReductions	0	usd
	us-gaap	Debt And Equity Securities Realized Gain Loss DebtAndEquitySecuritiesRealizedGainLoss	0	usd
	us-gaap	Debt And Equity Securities Unrealized Gain Loss DebtAndEquitySecuritiesUnrealizedGainLoss	-748000	usd
CY2024Q3	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	0	usd
	us-gaap	Interest Income Operating InterestIncomeOperating	0	usd
	us-gaap	Interest Income Operating Paid In Kind InterestIncomeOperatingPaidInKind	0	usd
	us-gaap	Investments In And Advances To Affiliates At Fair Value Gross Additions InvestmentsInAndAdvancesToAffiliatesAtFairValueGrossAdditions	0	usd
	us-gaap	Investments In And Advances To Affiliates At Fair Value Gross Reductions InvestmentsInAndAdvancesToAffiliatesAtFairValueGrossReductions	0	usd
	us-gaap	Debt And Equity Securities Realized Gain Loss DebtAndEquitySecuritiesRealizedGainLoss	0	usd
	us-gaap	Debt And Equity Securities Unrealized Gain Loss DebtAndEquitySecuritiesUnrealizedGainLoss	0	usd
	us-gaap	Interest Income Operating InterestIncomeOperating	0	usd
	us-gaap	Interest Income Operating Paid In Kind InterestIncomeOperatingPaidInKind	0	usd
	us-gaap	Investments In And Advances To Affiliates At Fair Value Gross Additions InvestmentsInAndAdvancesToAffiliatesAtFairValueGrossAdditions	0	usd
	us-gaap	Investments In And Advances To Affiliates At Fair Value Gross Reductions InvestmentsInAndAdvancesToAffiliatesAtFairValueGrossReductions	19282000	usd
	us-gaap	Debt And Equity Securities Realized Gain Loss DebtAndEquitySecuritiesRealizedGainLoss	-50995000	usd
	us-gaap	Debt And Equity Securities Unrealized Gain Loss DebtAndEquitySecuritiesUnrealizedGainLoss	48077000	usd
	us-gaap	Interest Income Operating InterestIncomeOperating	0	usd
	us-gaap	Interest Income Operating Paid In Kind InterestIncomeOperatingPaidInKind	0	usd
CY2023Q4	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	23823000	usd
	us-gaap	Investments In And Advances To Affiliates At Fair Value Gross Additions InvestmentsInAndAdvancesToAffiliatesAtFairValueGrossAdditions	60000	usd
	us-gaap	Investments In And Advances To Affiliates At Fair Value Gross Reductions InvestmentsInAndAdvancesToAffiliatesAtFairValueGrossReductions	20357000	usd
	us-gaap	Debt And Equity Securities Realized Gain Loss DebtAndEquitySecuritiesRealizedGainLoss	-3526000	usd
	us-gaap	Debt And Equity Securities Unrealized Gain Loss DebtAndEquitySecuritiesUnrealizedGainLoss	0	usd
	us-gaap	Interest Income Operating InterestIncomeOperating	1508000	usd
	us-gaap	Interest Income Operating Paid In Kind InterestIncomeOperatingPaidInKind	60000	usd
	us-gaap	Investments In And Advances To Affiliates At Fair Value Gross Additions InvestmentsInAndAdvancesToAffiliatesAtFairValueGrossAdditions	0	usd
	us-gaap	Investments In And Advances To Affiliates At Fair Value Gross Reductions InvestmentsInAndAdvancesToAffiliatesAtFairValueGrossReductions	0	usd
	us-gaap	Debt And Equity Securities Realized Gain Loss DebtAndEquitySecuritiesRealizedGainLoss	0	usd
	us-gaap	Debt And Equity Securities Unrealized Gain Loss DebtAndEquitySecuritiesUnrealizedGainLoss	6897000	usd
	us-gaap	Interest Income Operating InterestIncomeOperating	0	usd
	us-gaap	Interest Income Operating Paid In Kind InterestIncomeOperatingPaidInKind	0	usd
	us-gaap	Investments In And Advances To Affiliates At Fair Value Gross Additions InvestmentsInAndAdvancesToAffiliatesAtFairValueGrossAdditions	0	usd
	us-gaap	Investments In And Advances To Affiliates At Fair Value Gross Reductions InvestmentsInAndAdvancesToAffiliatesAtFairValueGrossReductions	0	usd
	us-gaap	Debt And Equity Securities Realized Gain Loss DebtAndEquitySecuritiesRealizedGainLoss	-1527000	usd
	us-gaap	Debt And Equity Securities Unrealized Gain Loss DebtAndEquitySecuritiesUnrealizedGainLoss	1527000	usd
	us-gaap	Interest Income Operating InterestIncomeOperating	0	usd
	us-gaap	Interest Income Operating Paid In Kind InterestIncomeOperatingPaidInKind	0	usd
CY2023Q4	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	0	usd
	us-gaap	Investments In And Advances To Affiliates At Fair Value Gross Additions InvestmentsInAndAdvancesToAffiliatesAtFairValueGrossAdditions	0	usd
	us-gaap	Investments In And Advances To Affiliates At Fair Value Gross Reductions InvestmentsInAndAdvancesToAffiliatesAtFairValueGrossReductions	0	usd
	us-gaap	Debt And Equity Securities Realized Gain Loss DebtAndEquitySecuritiesRealizedGainLoss	0	usd
	us-gaap	Debt And Equity Securities Unrealized Gain Loss DebtAndEquitySecuritiesUnrealizedGainLoss	0	usd
CY2024Q3	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	0	usd
	us-gaap	Interest Income Operating InterestIncomeOperating	0	usd
	us-gaap	Interest Income Operating Paid In Kind InterestIncomeOperatingPaidInKind	0	usd
CY2023Q4	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	15566000	usd
	us-gaap	Investments In And Advances To Affiliates At Fair Value Gross Additions InvestmentsInAndAdvancesToAffiliatesAtFairValueGrossAdditions	127000	usd
	us-gaap	Investments In And Advances To Affiliates At Fair Value Gross Reductions InvestmentsInAndAdvancesToAffiliatesAtFairValueGrossReductions	13578000	usd
	us-gaap	Debt And Equity Securities Realized Gain Loss DebtAndEquitySecuritiesRealizedGainLoss	-7303000	usd
	us-gaap	Debt And Equity Securities Unrealized Gain Loss DebtAndEquitySecuritiesUnrealizedGainLoss	5188000	usd
	us-gaap	Interest Income Operating InterestIncomeOperating	0	usd
	us-gaap	Interest Income Operating Paid In Kind InterestIncomeOperatingPaidInKind	0	usd
CY2023Q4	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	20175000	usd
CY2023Q4	us-gaap	Investment Basis Spread Variable Rate InvestmentBasisSpreadVariableRate	0.0425
CY2023Q4	us-gaap	Investment Interest Rate Floor InvestmentInterestRateFloor	0.005
CY2023Q4	us-gaap	Investment Interest Rate Paid In Kind InvestmentInterestRatePaidInKind	0.030
CY2023Q4	us-gaap	Investment Basis Spread Variable Rate InvestmentBasisSpreadVariableRate	0.0475
CY2023Q4	us-gaap	Investment Interest Rate Floor InvestmentInterestRateFloor	0.005
CY2023Q4	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	9975000	usd
CY2023Q4	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	9841000	usd
CY2023Q4	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	9998000	usd
CY2023Q4	us-gaap	Investment Basis Spread Variable Rate InvestmentBasisSpreadVariableRate	0.0375
CY2023Q4	us-gaap	Investment Interest Rate Floor InvestmentInterestRateFloor	0.005
CY2023Q4	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	9929000	usd
CY2023Q4	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	9627000	usd
CY2023Q4	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	9903000	usd
CY2023Q4	us-gaap	Investment Interest Rate Paid In Kind InvestmentInterestRatePaidInKind	0.100
CY2023Q4	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	70277000	usd
CY2023Q4	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	70277000	usd
CY2023Q4	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	22200000	usd
CY2023Q4	us-gaap	Investment Basis Spread Variable Rate InvestmentBasisSpreadVariableRate	0.0500
CY2023Q4	us-gaap	Investment Interest Rate Floor InvestmentInterestRateFloor	0.008
CY2023Q4	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	9975000	usd
CY2023Q4	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	9752000	usd
CY2023Q4	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	9858000	usd
CY2023Q4	us-gaap	Investment Basis Spread Variable Rate InvestmentBasisSpreadVariableRate	0.0450
CY2023Q4	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	9352000	usd
CY2023Q4	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	21465000	usd
CY2023Q4	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	18225000	usd
CY2023Q4	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	18222000	usd
CY2023Q4	us-gaap	Investment Basis Spread Variable Rate InvestmentBasisSpreadVariableRate	0.0525
CY2023Q4	us-gaap	Investment Interest Rate Floor InvestmentInterestRateFloor	0.005
CY2023Q4	us-gaap	Investment Basis Spread Variable Rate InvestmentBasisSpreadVariableRate	0.0675
CY2023Q4	us-gaap	Investment Interest Rate Floor InvestmentInterestRateFloor	0.010
CY2023Q4	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	20915000	usd
CY2023Q4	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	20915000	usd
CY2023Q4	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	21098000	usd
CY2023Q4	us-gaap	Investment Basis Spread Variable Rate InvestmentBasisSpreadVariableRate	0.0675
CY2023Q4	us-gaap	Investment Interest Rate Floor InvestmentInterestRateFloor	0.010
CY2023Q4	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	2688000	usd
CY2023Q4	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	2688000	usd
CY2023Q4	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	2712000	usd
CY2023Q4	us-gaap	Investment Basis Spread Variable Rate InvestmentBasisSpreadVariableRate	0.0675
CY2023Q4	us-gaap	Investment Interest Rate Floor InvestmentInterestRateFloor	0.010
CY2023Q4	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	1344000	usd
CY2023Q4	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	1344000	usd
CY2023Q4	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	1356000	usd
CY2023Q4	us-gaap	Investment Basis Spread Variable Rate InvestmentBasisSpreadVariableRate	0.0425
CY2023Q4	us-gaap	Investment Interest Rate Floor InvestmentInterestRateFloor	0.005
CY2023Q4	us-gaap	Investment Basis Spread Variable Rate InvestmentBasisSpreadVariableRate	0.0350
CY2023Q4	us-gaap	Investment Basis Spread Variable Rate InvestmentBasisSpreadVariableRate	0.0418
CY2023Q4	us-gaap	Investment Interest Rate Floor InvestmentInterestRateFloor	0.005
CY2023Q4	us-gaap	Investment Interest Rate InvestmentInterestRate	0.129
CY2023Q4	us-gaap	Investment Interest Rate Floor InvestmentInterestRateFloor	0.008
CY2023Q4	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	5430000	usd
CY2023Q4	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	5445000	usd
CY2023Q4	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	5468000	usd
CY2023Q4	us-gaap	Investment Basis Spread Variable Rate InvestmentBasisSpreadVariableRate	0.0350
CY2023Q4	us-gaap	Investment Interest Rate Floor InvestmentInterestRateFloor	0.008
CY2023Q4	us-gaap	Investment Basis Spread Variable Rate InvestmentBasisSpreadVariableRate	0.0500
CY2023Q4	us-gaap	Investment Interest Rate Floor InvestmentInterestRateFloor	0.010
CY2023Q4	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	19905000	usd
CY2023Q4	us-gaap	Investment Basis Spread Variable Rate InvestmentBasisSpreadVariableRate	0.0750
CY2023Q4	us-gaap	Investment Interest Rate Floor InvestmentInterestRateFloor	0.005
CY2023Q4	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	17047000	usd
CY2023Q4	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	16855000	usd
CY2023Q4	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	17156000	usd
CY2023Q4	us-gaap	Investment Basis Spread Variable Rate InvestmentBasisSpreadVariableRate	0.0750
CY2023Q4	us-gaap	Investment Interest Rate Floor InvestmentInterestRateFloor	0.020
CY2023Q4	us-gaap	Investment Basis Spread Variable Rate InvestmentBasisSpreadVariableRate	0.0700
CY2023Q4	us-gaap	Investment Interest Rate Floor InvestmentInterestRateFloor	0.005
CY2023Q4	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	14516000	usd
CY2023Q4	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	14326000	usd
CY2023Q4	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	14379000	usd
CY2023Q4	us-gaap	Investment Basis Spread Variable Rate InvestmentBasisSpreadVariableRate	0.0400
CY2023Q4	us-gaap	Investment Interest Rate Floor InvestmentInterestRateFloor	0.005
CY2023Q4	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	19925000	usd
CY2023Q4	us-gaap	Investment Basis Spread Variable Rate InvestmentBasisSpreadVariableRate	0.0500
CY2023Q4	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	21000000	usd
CY2023Q4	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	20370000	usd
CY2023Q4	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	20858000	usd
CY2023Q4	us-gaap	Investment Basis Spread Variable Rate InvestmentBasisSpreadVariableRate	0.0500
CY2023Q4	us-gaap	Investment Interest Rate Floor InvestmentInterestRateFloor	0.005
CY2023Q4	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	19864000	usd
CY2023Q4	us-gaap	Investment Basis Spread Variable Rate InvestmentBasisSpreadVariableRate	0.0475
CY2023Q4	us-gaap	Investment Interest Rate Floor InvestmentInterestRateFloor	0.005
CY2023Q4	us-gaap	Investment Basis Spread Variable Rate InvestmentBasisSpreadVariableRate	0.0400
CY2023Q4	us-gaap	Investment Interest Rate Floor InvestmentInterestRateFloor	0.008
CY2023Q4	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	19893000	usd
CY2023Q4	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	19797000	usd
CY2023Q4	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	19955000	usd
CY2023Q4	us-gaap	Investment Basis Spread Variable Rate InvestmentBasisSpreadVariableRate	0.0900
CY2023Q4	us-gaap	Investment Interest Rate Floor InvestmentInterestRateFloor	0.015
CY2023Q4	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	20000000	usd
CY2023Q4	us-gaap	Investment Interest Rate InvestmentInterestRate	0.070
CY2023Q4	us-gaap	Investment Interest Rate Paid In Kind InvestmentInterestRatePaidInKind	0.020
CY2023Q4	us-gaap	Investment Basis Spread Variable Rate InvestmentBasisSpreadVariableRate	0.0350
CY2023Q4	us-gaap	Investment Interest Rate InvestmentInterestRate	0.060
CY2023Q4	us-gaap	Investment Interest Rate Paid In Kind InvestmentInterestRatePaidInKind	0.095
CY2023Q4	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	13297000	usd
CY2023Q4	us-gaap	Investment Interest Rate Paid In Kind InvestmentInterestRatePaidInKind	0.100
CY2023Q4	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	4015000	usd
CY2023Q4	us-gaap	Investment Interest Rate InvestmentInterestRate	0.100
CY2023Q4	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	2709000	usd
CY2023Q4	us-gaap	Investment Basis Spread Variable Rate InvestmentBasisSpreadVariableRate	0.0500
CY2023Q4	us-gaap	Investment Interest Rate Floor InvestmentInterestRateFloor	0.010
CY2023Q4	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	30118000	usd
CY2023Q4	us-gaap	Investment Basis Spread Variable Rate InvestmentBasisSpreadVariableRate	0.0400
CY2023Q4	us-gaap	Investment Interest Rate Floor InvestmentInterestRateFloor	0.010
CY2023Q4	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	19924000	usd
CY2023Q4	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	19979000	usd
CY2023Q4	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	20007000	usd
CY2023Q4	us-gaap	Investment Basis Spread Variable Rate InvestmentBasisSpreadVariableRate	0.0450
CY2023Q4	us-gaap	Investment Interest Rate Floor InvestmentInterestRateFloor	0.008
CY2023Q4	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	20000000	usd
CY2023Q4	us-gaap	Investment Basis Spread Variable Rate InvestmentBasisSpreadVariableRate	0.0350
CY2023Q4	us-gaap	Investment Interest Rate Floor InvestmentInterestRateFloor	0.008
CY2023Q4	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	19956000	usd
CY2023Q4	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	19117000	usd
CY2023Q4	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	19740000	usd
CY2023Q4	us-gaap	Investment Basis Spread Variable Rate InvestmentBasisSpreadVariableRate	0.0450
CY2023Q4	us-gaap	Investment Interest Rate Floor InvestmentInterestRateFloor	0.005
CY2023Q4	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	9844000	usd
CY2023Q4	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	9868000	usd
CY2023Q4	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	9890000	usd
CY2023Q4	us-gaap	Investment Basis Spread Variable Rate InvestmentBasisSpreadVariableRate	0.0450
CY2023Q4	us-gaap	Investment Interest Rate Floor InvestmentInterestRateFloor	0.005
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CY2023Q4	us-gaap	Investment Basis Spread Variable Rate InvestmentBasisSpreadVariableRate	0.0350
CY2023Q4	us-gaap	Investment Interest Rate Floor InvestmentInterestRateFloor	0.005
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CY2023Q4	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	19729000	usd
CY2023Q4	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	19982000	usd
CY2023Q4	us-gaap	Investment Basis Spread Variable Rate InvestmentBasisSpreadVariableRate	0.0550
CY2023Q4	us-gaap	Investment Interest Rate Floor InvestmentInterestRateFloor	0.010
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CY2023Q4	us-gaap	Investment Basis Spread Variable Rate InvestmentBasisSpreadVariableRate	0.0400
CY2023Q4	us-gaap	Investment Interest Rate Floor InvestmentInterestRateFloor	0.008
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CY2023Q4	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	18614000	usd
CY2023Q4	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	19268000	usd
CY2023Q4	us-gaap	Investment Basis Spread Variable Rate InvestmentBasisSpreadVariableRate	0.0900
CY2023Q4	us-gaap	Investment Interest Rate Paid In Kind InvestmentInterestRatePaidInKind	0.010
CY2023Q4	us-gaap	Investment Interest Rate Floor InvestmentInterestRateFloor	0.010
CY2023Q4	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	23823000	usd
CY2023Q4	us-gaap	Investment Basis Spread Variable Rate InvestmentBasisSpreadVariableRate	0.0985
CY2023Q4	us-gaap	Investment Interest Rate Floor InvestmentInterestRateFloor	0.018
CY2023Q4	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	42938000	usd
CY2023Q4	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	42938000	usd
CY2023Q4	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	41882000	usd
CY2023Q4	us-gaap	Investment Basis Spread Variable Rate InvestmentBasisSpreadVariableRate	0.0765
CY2023Q4	us-gaap	Investment Interest Rate Floor InvestmentInterestRateFloor	0.010
CY2023Q4	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	35000000	usd
CY2023Q4	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	34527000	usd
CY2023Q4	us-gaap	Investment Basis Spread Variable Rate InvestmentBasisSpreadVariableRate	0.0750
CY2023Q4	us-gaap	Investment Interest Rate Floor InvestmentInterestRateFloor	0.010
CY2023Q4	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	20537000	usd
CY2023Q4	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	20537000	usd
CY2023Q4	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	19998000	usd
CY2023Q4	us-gaap	Investment Interest Rate InvestmentInterestRate	0.073
CY2023Q4	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	10601000	usd
CY2023Q4	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	9614000	usd
CY2023Q4	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	10385000	usd
CY2023Q4	us-gaap	Investment Interest Rate InvestmentInterestRate	0.100
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CY2023Q4	us-gaap	Investment Interest Rate InvestmentInterestRate	0.083
CY2023Q4	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	20742000	usd
CY2023Q4	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	18561000	usd
CY2023Q4	us-gaap	Investment Interest Rate InvestmentInterestRate	0.085
CY2023Q4	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	20000000	usd
CY2023Q4	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	17987000	usd
CY2023Q4	us-gaap	Investment Interest Rate InvestmentInterestRate	0.108
CY2023Q4	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	20000000	usd
CY2023Q4	us-gaap	Investment Interest Rate InvestmentInterestRate	0.063
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CY2023Q4	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	60603000	usd
CY2023Q4	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	43150000	usd
CY2023Q4	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	39427000	usd
CY2023Q4	us-gaap	Investment Owned Balance Shares InvestmentOwnedBalanceShares	28942003	shares
CY2023Q4	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	1447000	usd
CY2023Q4	us-gaap	Investment Owned Balance Shares InvestmentOwnedBalanceShares	6944444	shares
CY2023Q4	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	6944000	usd
CY2023Q4	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	1375000	usd
CY2023Q4	fssl	Investment Strike Price InvestmentStrikePrice	1.00
CY2023Q4	us-gaap	Investment Owned Balance Shares InvestmentOwnedBalanceShares	35	shares
CY2023Q4	us-gaap	Investment Owned Balance Shares InvestmentOwnedBalanceShares	1486929	shares
CY2023Q4	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	44573000	usd
CY2023Q4	us-gaap	Investment Owned Balance Shares InvestmentOwnedBalanceShares	2785562	shares
CY2023Q4	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	2786000	usd
CY2023Q4	us-gaap	Investment Interest Rate Paid In Kind InvestmentInterestRatePaidInKind	0.090
CY2023Q4	us-gaap	Investment Owned Balance Shares InvestmentOwnedBalanceShares	19965	shares
CY2023Q4	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	12493000	usd
CY2023Q4	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	10357000	usd
CY2023Q4	us-gaap	Investment Owned Balance Shares InvestmentOwnedBalanceShares	105785	shares
CY2023Q4	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	6681000	usd
CY2023Q4	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	1661000	usd
CY2023Q4	us-gaap	Investment Owned Balance Shares InvestmentOwnedBalanceShares	135062	shares
CY2023Q4	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	14418000	usd
CY2023Q4	us-gaap	Investment Owned Balance Shares InvestmentOwnedBalanceShares	503176	shares
CY2023Q4	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	93044000	usd
CY2023Q4	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	164040000	usd
CY2023Q4	us-gaap	Investment Interest Rate InvestmentInterestRate	0.142
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CY2023Q4	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	157633000	usd
CY2023Q4	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	141141000	usd
CY2023Q4	fssl	Investment Strike Price InvestmentStrikePrice	14.54
CY2023Q4	us-gaap	Investment Owned Balance Shares InvestmentOwnedBalanceShares	2187500	shares
CY2023Q4	fssl	Investment Strike Price InvestmentStrikePrice	17.45
CY2023Q4	us-gaap	Investment Owned Balance Shares InvestmentOwnedBalanceShares	3125000	shares
CY2023Q4	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	2623000	usd
CY2023Q4	fssl	Investment Strike Price InvestmentStrikePrice	16.27
CY2023Q4	us-gaap	Investment Owned Balance Shares InvestmentOwnedBalanceShares	781250	shares
CY2023Q4	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	576000	usd
CY2023Q4	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	735000	usd
CY2023Q4	fssl	Investment Strike Price InvestmentStrikePrice	13.56
CY2023Q4	us-gaap	Investment Owned Balance Shares InvestmentOwnedBalanceShares	546880	shares
CY2023Q4	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	630000	usd
CY2023Q4	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	621000	usd
CY2023Q4	us-gaap	Investment Owned Balance Shares InvestmentOwnedBalanceShares	1968861	shares
CY2023Q4	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	5000	usd
CY2023Q4	us-gaap	Investment Owned Balance Shares InvestmentOwnedBalanceShares	50	shares
CY2023Q4	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	0	usd
CY2023Q4	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	0	usd
CY2023Q4	us-gaap	Investment Owned Balance Shares InvestmentOwnedBalanceShares	50	shares
CY2023Q4	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	7571000	usd
CY2023Q4	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	4418000	usd
CY2023Q4	us-gaap	Investment Interest Rate InvestmentInterestRate	0.098
CY2023Q4	us-gaap	Investment Owned Balance Shares InvestmentOwnedBalanceShares	79336	shares
CY2023Q4	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	78091000	usd
CY2023Q4	us-gaap	Investment Owned Balance Shares InvestmentOwnedBalanceShares	4415749	shares
CY2023Q4	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	20754000	usd
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CY2023Q4	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	20994000	usd
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CY2023Q4	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	1543925000	usd
CY2023Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	486059000	usd
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CY2023Q4	us-gaap	Non Investment Assets Less Non Investment Liabilities NonInvestmentAssetsLessNonInvestmentLiabilities	-447200000	usd
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CY2023Q4	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	23098000	usd
CY2023Q4	us-gaap	Investment Interest Rate InvestmentInterestRate	0.053
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CY2023	us-gaap	Investments In And Advances To Affiliates At Fair Value Gross Reductions InvestmentsInAndAdvancesToAffiliatesAtFairValueGrossReductions	3112000	usd
CY2023	us-gaap	Debt And Equity Securities Realized Gain Loss DebtAndEquitySecuritiesRealizedGainLoss	3112000	usd
CY2023	us-gaap	Debt And Equity Securities Unrealized Gain Loss DebtAndEquitySecuritiesUnrealizedGainLoss	-3383000	usd
CY2023Q4	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	1661000	usd
CY2023	us-gaap	Interest Income Operating InterestIncomeOperating	0	usd
CY2023	us-gaap	Interest Income Operating Paid In Kind InterestIncomeOperatingPaidInKind	0	usd
CY2022Q4	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	810000	usd
CY2023	us-gaap	Investments In And Advances To Affiliates At Fair Value Gross Additions InvestmentsInAndAdvancesToAffiliatesAtFairValueGrossAdditions	0	usd
CY2023	us-gaap	Investments In And Advances To Affiliates At Fair Value Gross Reductions InvestmentsInAndAdvancesToAffiliatesAtFairValueGrossReductions	641000	usd
CY2023	us-gaap	Debt And Equity Securities Realized Gain Loss DebtAndEquitySecuritiesRealizedGainLoss	0	usd
CY2023	us-gaap	Debt And Equity Securities Unrealized Gain Loss DebtAndEquitySecuritiesUnrealizedGainLoss	102000	usd
CY2023Q4	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	271000	usd
CY2023	us-gaap	Interest Income Operating InterestIncomeOperating	0	usd
CY2023	us-gaap	Interest Income Operating Paid In Kind InterestIncomeOperatingPaidInKind	0	usd
CY2022Q4	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	41851000	usd
CY2023	us-gaap	Investments In And Advances To Affiliates At Fair Value Gross Additions InvestmentsInAndAdvancesToAffiliatesAtFairValueGrossAdditions	0	usd
CY2023	us-gaap	Investments In And Advances To Affiliates At Fair Value Gross Reductions InvestmentsInAndAdvancesToAffiliatesAtFairValueGrossReductions	35240000	usd
CY2023	us-gaap	Debt And Equity Securities Realized Gain Loss DebtAndEquitySecuritiesRealizedGainLoss	-11359000	usd
CY2023	us-gaap	Debt And Equity Securities Unrealized Gain Loss DebtAndEquitySecuritiesUnrealizedGainLoss	4748000	usd
CY2023Q4	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	0	usd
CY2023	us-gaap	Interest Income Operating InterestIncomeOperating	0	usd
CY2023	us-gaap	Interest Income Operating Paid In Kind InterestIncomeOperatingPaidInKind	0	usd
CY2022Q4	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	0	usd
CY2023	us-gaap	Investments In And Advances To Affiliates At Fair Value Gross Additions InvestmentsInAndAdvancesToAffiliatesAtFairValueGrossAdditions	0	usd
CY2023	us-gaap	Investments In And Advances To Affiliates At Fair Value Gross Reductions InvestmentsInAndAdvancesToAffiliatesAtFairValueGrossReductions	0	usd
CY2023	us-gaap	Debt And Equity Securities Realized Gain Loss DebtAndEquitySecuritiesRealizedGainLoss	0	usd
CY2023	us-gaap	Debt And Equity Securities Unrealized Gain Loss DebtAndEquitySecuritiesUnrealizedGainLoss	0	usd
CY2023Q4	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	0	usd
CY2023	us-gaap	Interest Income Operating InterestIncomeOperating	0	usd
CY2023	us-gaap	Interest Income Operating Paid In Kind InterestIncomeOperatingPaidInKind	0	usd
CY2022Q4	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	8436000	usd
CY2023	us-gaap	Investments In And Advances To Affiliates At Fair Value Gross Additions InvestmentsInAndAdvancesToAffiliatesAtFairValueGrossAdditions	138000	usd
CY2023	us-gaap	Investments In And Advances To Affiliates At Fair Value Gross Reductions InvestmentsInAndAdvancesToAffiliatesAtFairValueGrossReductions	8574000	usd
CY2023	us-gaap	Debt And Equity Securities Realized Gain Loss DebtAndEquitySecuritiesRealizedGainLoss	0	usd
CY2023	us-gaap	Debt And Equity Securities Unrealized Gain Loss DebtAndEquitySecuritiesUnrealizedGainLoss	0	usd
CY2023Q4	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	0	usd
CY2023	us-gaap	Interest Income Operating InterestIncomeOperating	256000	usd
CY2023	us-gaap	Interest Income Operating Paid In Kind InterestIncomeOperatingPaidInKind	139000	usd
CY2023	us-gaap	Dividend Income Operating DividendIncomeOperating	0	usd
CY2022Q4	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	63888000	usd
CY2023	us-gaap	Investments In And Advances To Affiliates At Fair Value Gross Additions InvestmentsInAndAdvancesToAffiliatesAtFairValueGrossAdditions	6389000	usd
CY2023	us-gaap	Investments In And Advances To Affiliates At Fair Value Gross Reductions InvestmentsInAndAdvancesToAffiliatesAtFairValueGrossReductions	0	usd
CY2023	us-gaap	Debt And Equity Securities Realized Gain Loss DebtAndEquitySecuritiesRealizedGainLoss	0	usd
CY2023	us-gaap	Debt And Equity Securities Unrealized Gain Loss DebtAndEquitySecuritiesUnrealizedGainLoss	-48077000	usd
CY2023	us-gaap	Interest Income Operating InterestIncomeOperating	0	usd
CY2023	us-gaap	Interest Income Operating Paid In Kind InterestIncomeOperatingPaidInKind	2910000	usd
CY2023	us-gaap	Dividend Income Operating DividendIncomeOperating	0	usd
CY2022Q4	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	23584000	usd
CY2023	us-gaap	Investments In And Advances To Affiliates At Fair Value Gross Additions InvestmentsInAndAdvancesToAffiliatesAtFairValueGrossAdditions	239000	usd
CY2023	us-gaap	Investments In And Advances To Affiliates At Fair Value Gross Reductions InvestmentsInAndAdvancesToAffiliatesAtFairValueGrossReductions	0	usd
CY2023	us-gaap	Debt And Equity Securities Realized Gain Loss DebtAndEquitySecuritiesRealizedGainLoss	0	usd
CY2023	us-gaap	Debt And Equity Securities Unrealized Gain Loss DebtAndEquitySecuritiesUnrealizedGainLoss	0	usd
CY2023	us-gaap	Interest Income Operating InterestIncomeOperating	3464000	usd
CY2023	us-gaap	Interest Income Operating Paid In Kind InterestIncomeOperatingPaidInKind	179000	usd
CY2023	us-gaap	Dividend Income Operating DividendIncomeOperating	0	usd
CY2022Q4	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	51098000	usd
CY2023	us-gaap	Investments In And Advances To Affiliates At Fair Value Gross Additions InvestmentsInAndAdvancesToAffiliatesAtFairValueGrossAdditions	0	usd
CY2023	us-gaap	Investments In And Advances To Affiliates At Fair Value Gross Reductions InvestmentsInAndAdvancesToAffiliatesAtFairValueGrossReductions	11364000	usd
CY2023	us-gaap	Debt And Equity Securities Realized Gain Loss DebtAndEquitySecuritiesRealizedGainLoss	0	usd
CY2023	us-gaap	Debt And Equity Securities Unrealized Gain Loss DebtAndEquitySecuritiesUnrealizedGainLoss	-307000	usd
CY2023Q4	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	39427000	usd
CY2023	us-gaap	Interest Income Operating InterestIncomeOperating	0	usd
CY2023	us-gaap	Interest Income Operating Paid In Kind InterestIncomeOperatingPaidInKind	0	usd
CY2023	us-gaap	Dividend Income Operating DividendIncomeOperating	8324000	usd
CY2022Q4	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	10463000	usd
CY2023	us-gaap	Investments In And Advances To Affiliates At Fair Value Gross Additions InvestmentsInAndAdvancesToAffiliatesAtFairValueGrossAdditions	0	usd
CY2023	us-gaap	Investments In And Advances To Affiliates At Fair Value Gross Reductions InvestmentsInAndAdvancesToAffiliatesAtFairValueGrossReductions	0	usd
CY2023	us-gaap	Debt And Equity Securities Realized Gain Loss DebtAndEquitySecuritiesRealizedGainLoss	0	usd
CY2023	us-gaap	Debt And Equity Securities Unrealized Gain Loss DebtAndEquitySecuritiesUnrealizedGainLoss	-10463000	usd
CY2023Q4	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	0	usd
CY2023	us-gaap	Interest Income Operating InterestIncomeOperating	0	usd
CY2023	us-gaap	Interest Income Operating Paid In Kind InterestIncomeOperatingPaidInKind	0	usd
CY2023	us-gaap	Dividend Income Operating DividendIncomeOperating	0	usd
CY2022Q4	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	0	usd
CY2023	us-gaap	Investments In And Advances To Affiliates At Fair Value Gross Additions InvestmentsInAndAdvancesToAffiliatesAtFairValueGrossAdditions	0	usd
CY2023	us-gaap	Investments In And Advances To Affiliates At Fair Value Gross Reductions InvestmentsInAndAdvancesToAffiliatesAtFairValueGrossReductions	0	usd
CY2023	us-gaap	Debt And Equity Securities Realized Gain Loss DebtAndEquitySecuritiesRealizedGainLoss	0	usd
CY2023	us-gaap	Debt And Equity Securities Unrealized Gain Loss DebtAndEquitySecuritiesUnrealizedGainLoss	0	usd
CY2023Q4	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	0	usd
CY2023	us-gaap	Interest Income Operating InterestIncomeOperating	0	usd
CY2023	us-gaap	Interest Income Operating Paid In Kind InterestIncomeOperatingPaidInKind	0	usd
CY2023	us-gaap	Dividend Income Operating DividendIncomeOperating	0	usd
CY2022Q4	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	36982000	usd
CY2023	us-gaap	Investments In And Advances To Affiliates At Fair Value Gross Additions InvestmentsInAndAdvancesToAffiliatesAtFairValueGrossAdditions	0	usd
CY2023	us-gaap	Investments In And Advances To Affiliates At Fair Value Gross Reductions InvestmentsInAndAdvancesToAffiliatesAtFairValueGrossReductions	0	usd
CY2023	us-gaap	Debt And Equity Securities Realized Gain Loss DebtAndEquitySecuritiesRealizedGainLoss	0	usd
CY2023	us-gaap	Debt And Equity Securities Unrealized Gain Loss DebtAndEquitySecuritiesUnrealizedGainLoss	-21416000	usd
CY2023Q4	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	15566000	usd
CY2023	us-gaap	Interest Income Operating InterestIncomeOperating	0	usd
CY2023	us-gaap	Interest Income Operating Paid In Kind InterestIncomeOperatingPaidInKind	0	usd
CY2023	us-gaap	Dividend Income Operating DividendIncomeOperating	0	usd
	us-gaap	Use Of Estimates UseOfEstimates	<div style="margin-bottom:6pt;text-indent:36pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">Use of Estimates:</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"> The preparation of the unaudited consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. Many of the amounts have been rounded, and all amounts are in thousands, except share and per share amounts.</span></div>
	us-gaap	Prior Period Reclassification Adjustment Description PriorPeriodReclassificationAdjustmentDescription	<div style="margin-bottom:6pt;text-indent:36pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">Reclassifications:</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"> Certain amounts in the unaudited consolidated financial statements for the nine months ended September 30, 2023 may have been reclassified to conform to the classifications used to prepare the unaudited consolidated financial statements for the nine months ended September 30, 2024.</span></div>
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	us-gaap	Fee Income FeeIncome	0	usd
	us-gaap	Stock Issued During Period Shares Dividend Reinvestment Plan StockIssuedDuringPeriodSharesDividendReinvestmentPlan	0	shares
	us-gaap	Stock Issued During Period Value Dividend Reinvestment Plan StockIssuedDuringPeriodValueDividendReinvestmentPlan	0	usd
	us-gaap	Stock Issued During Period Shares Dividend Reinvestment Plan StockIssuedDuringPeriodSharesDividendReinvestmentPlan	4040561	shares
	us-gaap	Stock Issued During Period Value Dividend Reinvestment Plan StockIssuedDuringPeriodValueDividendReinvestmentPlan	15549000	usd
	us-gaap	Stock Issued During Period Shares Period Increase Decrease StockIssuedDuringPeriodSharesPeriodIncreaseDecrease	0	shares
	us-gaap	Investment Company Increase Decrease From Share Transaction InvestmentCompanyIncreaseDecreaseFromShareTransaction	0	usd
	us-gaap	Stock Issued During Period Shares Period Increase Decrease StockIssuedDuringPeriodSharesPeriodIncreaseDecrease	4040561	shares
	us-gaap	Investment Company Increase Decrease From Share Transaction InvestmentCompanyIncreaseDecreaseFromShareTransaction	15549000	usd
CY2023Q1	us-gaap	Investment Company Distribution To Shareholders Per Share InvestmentCompanyDistributionToShareholdersPerShare	0.0300
CY2023Q1	us-gaap	Investment Company Dividend Distribution InvestmentCompanyDividendDistribution	13584000	usd
CY2023Q2	us-gaap	Investment Company Distribution To Shareholders Per Share InvestmentCompanyDistributionToShareholdersPerShare	0.0300
CY2023Q3	us-gaap	Investment Company Distribution To Shareholders Per Share InvestmentCompanyDistributionToShareholdersPerShare	0
CY2023Q3	us-gaap	Investment Company Dividend Distribution InvestmentCompanyDividendDistribution	0	usd
	us-gaap	Investment Company Distribution To Shareholders Per Share InvestmentCompanyDistributionToShareholdersPerShare	0.0600
	us-gaap	Investment Company Dividend Distribution InvestmentCompanyDividendDistribution	27208000	usd
CY2024Q1	us-gaap	Investment Company Distribution To Shareholders Per Share InvestmentCompanyDistributionToShareholdersPerShare	0.0034
CY2024Q1	us-gaap	Investment Company Dividend Distribution InvestmentCompanyDividendDistribution	1549000	usd
CY2024Q2	us-gaap	Investment Company Distribution To Shareholders Per Share InvestmentCompanyDistributionToShareholdersPerShare	0.0866
CY2024Q2	us-gaap	Investment Company Dividend Distribution InvestmentCompanyDividendDistribution	39447000	usd
CY2024Q3	us-gaap	Investment Company Distribution To Shareholders Per Share InvestmentCompanyDistributionToShareholdersPerShare	0.0867
CY2024Q3	us-gaap	Investment Company Dividend Distribution InvestmentCompanyDividendDistribution	39492000	usd
	us-gaap	Investment Company Distribution To Shareholders Per Share InvestmentCompanyDistributionToShareholdersPerShare	0.1767
	us-gaap	Investment Company Dividend Distribution InvestmentCompanyDividendDistribution	80488000	usd
CY2023Q4	us-gaap	Investment Company Distribution To Shareholders Per Share InvestmentCompanyDistributionToShareholdersPerShare	0.0643
CY2023Q4	fssl	Investment Company Annualized Distribution Rate InvestmentCompanyAnnualizedDistributionRate	0.075
CY2024Q3	us-gaap	Net Asset Value Per Share NetAssetValuePerShare	3.41
	fssl	Investment Company Net Asset Value Common Share Percentage InvestmentCompanyNetAssetValueCommonSharePercentage	0.025
	us-gaap	Investment Company Distribution Ordinary Income InvestmentCompanyDistributionOrdinaryIncome	80488000	usd
	fssl	Investment Company Distribution Ordinary Income Percent Of Total Distributions InvestmentCompanyDistributionOrdinaryIncomePercentOfTotalDistributions	1
	us-gaap	Investment Company Distribution Ordinary Income InvestmentCompanyDistributionOrdinaryIncome	27208000	usd
	fssl	Investment Company Distribution Ordinary Income Percent Of Total Distributions InvestmentCompanyDistributionOrdinaryIncomePercentOfTotalDistributions	1
	fssl	Investment Company Distribution Short Term Capital Gain InvestmentCompanyDistributionShortTermCapitalGain	0	usd
	fssl	Investment Company Distribution Short Term Capital Gain Percent Of Total Distributions InvestmentCompanyDistributionShortTermCapitalGainPercentOfTotalDistributions	0
	fssl	Investment Company Distribution Short Term Capital Gain InvestmentCompanyDistributionShortTermCapitalGain	0	usd
	fssl	Investment Company Distribution Short Term Capital Gain Percent Of Total Distributions InvestmentCompanyDistributionShortTermCapitalGainPercentOfTotalDistributions	0
	us-gaap	Investment Company Distribution Long Term Capital Gain InvestmentCompanyDistributionLongTermCapitalGain	0	usd
	fssl	Investment Company Distribution Long Term Capital Gain Percent Of Total Distributions InvestmentCompanyDistributionLongTermCapitalGainPercentOfTotalDistributions	0
	us-gaap	Investment Company Distribution Long Term Capital Gain InvestmentCompanyDistributionLongTermCapitalGain	0	usd
	fssl	Investment Company Distribution Long Term Capital Gain Percent Of Total Distributions InvestmentCompanyDistributionLongTermCapitalGainPercentOfTotalDistributions	0
	us-gaap	Investment Company Dividend Distribution InvestmentCompanyDividendDistribution	80488000	usd
	fssl	Investment Company Dividend Distribution Percent Of Total Distributions InvestmentCompanyDividendDistributionPercentOfTotalDistributions	1
	us-gaap	Investment Company Dividend Distribution InvestmentCompanyDividendDistribution	27208000	usd
	fssl	Investment Company Dividend Distribution Percent Of Total Distributions InvestmentCompanyDividendDistributionPercentOfTotalDistributions	1
	fssl	Gross Investment Income Percentage Attributable To Cash Income Earned GrossInvestmentIncomePercentageAttributableToCashIncomeEarned	0.908
	fssl	Gross Investment Income Percentage Attributable To Cash Income Earned GrossInvestmentIncomePercentageAttributableToCashIncomeEarned	0.838
	fssl	Gross Investment Income Percentage Attributable To Paid In Kind Interest GrossInvestmentIncomePercentageAttributableToPaidInKindInterest	0.050
	fssl	Gross Investment Income Percentage Attributable To Paid In Kind Interest GrossInvestmentIncomePercentageAttributableToPaidInKindInterest	0.123
	fssl	Gross Investment Income Percentage Attributable To Non Cash Accretion Of Discount GrossInvestmentIncomePercentageAttributableToNonCashAccretionOfDiscount	0.042
	fssl	Gross Investment Income Percentage Attributable To Non Cash Accretion Of Discount GrossInvestmentIncomePercentageAttributableToNonCashAccretionOfDiscount	0.039
CY2024Q3	us-gaap	Investment Company Distributable Earnings Loss Accumulated Capital Loss Carryforward InvestmentCompanyDistributableEarningsLossAccumulatedCapitalLossCarryforward	75615000	usd
CY2023Q4	us-gaap	Investment Company Distributable Earnings Loss Accumulated Capital Loss Carryforward InvestmentCompanyDistributableEarningsLossAccumulatedCapitalLossCarryforward	1461235000	usd
CY2024Q3	us-gaap	Tax Basis Of Investments Gross Unrealized Appreciation TaxBasisOfInvestmentsGrossUnrealizedAppreciation	65800000	usd
CY2023Q4	us-gaap	Tax Basis Of Investments Gross Unrealized Appreciation TaxBasisOfInvestmentsGrossUnrealizedAppreciation	148817000	usd
CY2024Q3	us-gaap	Tax Basis Of Investments Gross Unrealized Depreciation TaxBasisOfInvestmentsGrossUnrealizedDepreciation	178204000	usd
CY2023Q4	us-gaap	Tax Basis Of Investments Gross Unrealized Depreciation TaxBasisOfInvestmentsGrossUnrealizedDepreciation	213339000	usd
CY2024Q3	us-gaap	Tax Basis Of Investments Cost For Income Tax Purposes TaxBasisOfInvestmentsCostForIncomeTaxPurposes	1804425000	usd
CY2023Q4	us-gaap	Tax Basis Of Investments Cost For Income Tax Purposes TaxBasisOfInvestmentsCostForIncomeTaxPurposes	1587709000	usd
CY2024Q3	us-gaap	Tax Basis Of Investments Unrealized Appreciation Depreciation Net TaxBasisOfInvestmentsUnrealizedAppreciationDepreciationNet	-112373000	usd
CY2023Q4	us-gaap	Tax Basis Of Investments Unrealized Appreciation Depreciation Net TaxBasisOfInvestmentsUnrealizedAppreciationDepreciationNet	-64513000	usd
CY2024Q3	us-gaap	Derivative Assets DerivativeAssets	0	usd
CY2024Q3	us-gaap	Derivative Liabilities DerivativeLiabilities	13000	usd
CY2023Q4	us-gaap	Derivative Assets DerivativeAssets	0	usd
CY2023Q4	us-gaap	Derivative Liabilities DerivativeLiabilities	0	usd
	us-gaap	Gain Loss On Sale Of Derivatives GainLossOnSaleOfDerivatives	7057000	usd
	us-gaap	Gain Loss On Sale Of Derivatives GainLossOnSaleOfDerivatives	88000	usd
	us-gaap	Unrealized Gain Loss On Derivatives UnrealizedGainLossOnDerivatives	-13000	usd
	us-gaap	Unrealized Gain Loss On Derivatives UnrealizedGainLossOnDerivatives	400000	usd
CY2024Q3	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	1756453000	usd
CY2024Q3	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	1692052000	usd
CY2023Q4	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	1543925000	usd
CY2023Q4	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	1523196000	usd
CY2024Q3	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	1692052000	usd
CY2024Q3	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	1692052000	usd
CY2023Q4	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	1523196000	usd
CY2024Q3	us-gaap	Assets Fair Value Disclosure AssetsFairValueDisclosure	0	usd
CY2024Q3	us-gaap	Liabilities Fair Value Disclosure LiabilitiesFairValueDisclosure	13000	usd
CY2023Q4	us-gaap	Assets Fair Value Disclosure AssetsFairValueDisclosure	0	usd
CY2023Q4	us-gaap	Liabilities Fair Value Disclosure LiabilitiesFairValueDisclosure	0	usd
	us-gaap	Interest Expense Debt Excluding Amortization InterestExpenseDebtExcludingAmortization	25655000	usd
	us-gaap	Amortization Of Debt Discount Premium AmortizationOfDebtDiscountPremium	1555000	usd
	us-gaap	Interest Expense Debt InterestExpenseDebt	27210000	usd
	us-gaap	Interest Expense Debt Excluding Amortization InterestExpenseDebtExcludingAmortization	16163000	usd
	us-gaap	Amortization Of Debt Discount Premium AmortizationOfDebtDiscountPremium	2903000	usd
	us-gaap	Interest Expense Debt InterestExpenseDebt	19066000	usd
	us-gaap	Long Term Debt Average Amount Outstanding LongTermDebtAverageAmountOutstanding	400000000	usd
CY2024Q3	us-gaap	Debt Weighted Average Interest Rate DebtWeightedAverageInterestRate	0.0843
CY2024Q3	us-gaap	Debt Instrument Interest Rate Effective Percentage DebtInstrumentInterestRateEffectivePercentage	0.0835
	us-gaap	Long Term Debt Average Amount Outstanding LongTermDebtAverageAmountOutstanding	557446000	usd
CY2023Q2	us-gaap	Debt Weighted Average Interest Rate DebtWeightedAverageInterestRate	0.0749
	us-gaap	Long Term Debt Average Amount Outstanding LongTermDebtAverageAmountOutstanding	0	usd
CY2023Q3	us-gaap	Long Term Debt Average Amount Outstanding LongTermDebtAverageAmountOutstanding	80000000	usd
CY2023Q3	us-gaap	Debt Weighted Average Interest Rate DebtWeightedAverageInterestRate	0.1103
CY2023Q3	us-gaap	Debt Instrument Interest Rate Effective Percentage DebtInstrumentInterestRateEffectivePercentage	0.0890
CY2023Q3	fssl	Number Of Special Purpose Financing Subsidiaries NumberOfSpecialPurposeFinancingSubsidiaries	2	subsidiary
CY2023Q4	us-gaap	Net Asset Value Per Share NetAssetValuePerShare	3.43
	us-gaap	Investment Company Investment Income Loss Per Share InvestmentCompanyInvestmentIncomeLossPerShare	0.23
CY2023	us-gaap	Investment Company Investment Income Loss Per Share InvestmentCompanyInvestmentIncomeLossPerShare	0.18
	us-gaap	Investment Company Gain Loss On Investment Per Share InvestmentCompanyGainLossOnInvestmentPerShare	-0.07
CY2023	us-gaap	Investment Company Gain Loss On Investment Per Share InvestmentCompanyGainLossOnInvestmentPerShare	-0.44
	us-gaap	Investment Company Investment Income Loss From Operations Per Share InvestmentCompanyInvestmentIncomeLossFromOperationsPerShare	0.16
CY2023	us-gaap	Investment Company Investment Income Loss From Operations Per Share InvestmentCompanyInvestmentIncomeLossFromOperationsPerShare	-0.26
	fssl	Investment Company Distribution To Shareholder From Net Investment Income InvestmentCompanyDistributionToShareholderFromNetInvestmentIncome	0.18
CY2023	fssl	Investment Company Distribution To Shareholder From Net Investment Income InvestmentCompanyDistributionToShareholderFromNetInvestmentIncome	0.19
	us-gaap	Investment Company Distribution To Shareholders Per Share InvestmentCompanyDistributionToShareholdersPerShare	0.18
CY2023	us-gaap	Investment Company Distribution To Shareholders Per Share InvestmentCompanyDistributionToShareholdersPerShare	0.19
	us-gaap	Investment Company Issuance Of Shares Per Share InvestmentCompanyIssuanceOfSharesPerShare	0
CY2023	us-gaap	Investment Company Issuance Of Shares Per Share InvestmentCompanyIssuanceOfSharesPerShare	0
	fssl	Investment Company Capital Share Transaction Per Share InvestmentCompanyCapitalShareTransactionPerShare	0
CY2023	fssl	Investment Company Capital Share Transaction Per Share InvestmentCompanyCapitalShareTransactionPerShare	0
CY2024Q3	us-gaap	Net Asset Value Per Share NetAssetValuePerShare	3.41
CY2023Q4	us-gaap	Net Asset Value Per Share NetAssetValuePerShare	3.43
CY2024Q3	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	455506155	shares
CY2023Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	455506155	shares
	us-gaap	Investment Company Total Return InvestmentCompanyTotalReturn	0.0459
CY2023	us-gaap	Investment Company Total Return InvestmentCompanyTotalReturn	-0.0689
	fssl	Investment Company Total Return Without Assuming Reinvestment Of Distributions InvestmentCompanyTotalReturnWithoutAssumingReinvestmentOfDistributions	0.0457
CY2023	fssl	Investment Company Total Return Without Assuming Reinvestment Of Distributions InvestmentCompanyTotalReturnWithoutAssumingReinvestmentOfDistributions	-0.0670
CY2024Q3	us-gaap	Stockholders Equity StockholdersEquity	1554989000	usd
CY2023Q4	us-gaap	Stockholders Equity StockholdersEquity	1562055000	usd
	us-gaap	Investment Company Investment Income Loss Ratio InvestmentCompanyInvestmentIncomeLossRatio	0.0896
CY2023	us-gaap	Investment Company Investment Income Loss Ratio InvestmentCompanyInvestmentIncomeLossRatio	0.0477
	us-gaap	Investment Company Expense Ratio Including Incentive Fee InvestmentCompanyExpenseRatioIncludingIncentiveFee	0.0566
CY2023	us-gaap	Investment Company Expense Ratio Including Incentive Fee InvestmentCompanyExpenseRatioIncludingIncentiveFee	0.0450
	fssl	Investment Company Expense Ratio Management Fee Waiver InvestmentCompanyExpenseRatioManagementFeeWaiver	0.0000
CY2023	fssl	Investment Company Expense Ratio Management Fee Waiver InvestmentCompanyExpenseRatioManagementFeeWaiver	0.0002
	fssl	Investment Company Expense Ratio Including Fee Waiver And Reimbursements InvestmentCompanyExpenseRatioIncludingFeeWaiverAndReimbursements	0.0566
CY2023	fssl	Investment Company Expense Ratio Including Fee Waiver And Reimbursements InvestmentCompanyExpenseRatioIncludingFeeWaiverAndReimbursements	0.0448
	fssl	Investment Company Interest Expense To Average Net Assets InvestmentCompanyInterestExpenseToAverageNetAssets	0.0231
CY2023	fssl	Investment Company Interest Expense To Average Net Assets InvestmentCompanyInterestExpenseToAverageNetAssets	0.0139
	fssl	Investment Company Federal And State Taxes To Average Net Assets InvestmentCompanyFederalAndStateTaxesToAverageNetAssets	0.0008
	fssl	Investment Company Federal And State Taxes To Average Net Assets InvestmentCompanyFederalAndStateTaxesToAverageNetAssets	0.0015
	us-gaap	Investment Company Portfolio Turnover InvestmentCompanyPortfolioTurnover	0.4708
CY2023	us-gaap	Investment Company Portfolio Turnover InvestmentCompanyPortfolioTurnover	0.4584
CY2024Q3	cef	Senior Securities Amt SeniorSecuritiesAmt	400000000	usd
CY2023Q4	cef	Senior Securities Amt SeniorSecuritiesAmt	400000000	usd
CY2024Q3	cef	Senior Securities Cvg Per Unit SeniorSecuritiesCvgPerUnit	4887
CY2023Q4	cef	Senior Securities Cvg Per Unit SeniorSecuritiesCvgPerUnit	4905
CY2024Q3	fssl	Investment Company Senior Security Asset Coverage Ratio InvestmentCompanySeniorSecurityAssetCoverageRatio	4.89
CY2023Q4	fssl	Investment Company Senior Security Asset Coverage Ratio InvestmentCompanySeniorSecurityAssetCoverageRatio	4.91
	fssl	Investment Company Investment Income Loss Ratio Excluding Advisors Agreement To Offset Management Fee InvestmentCompanyInvestmentIncomeLossRatioExcludingAdvisorsAgreementToOffsetManagementFee	0.0896
CY2023	fssl	Investment Company Investment Income Loss Ratio Excluding Advisors Agreement To Offset Management Fee InvestmentCompanyInvestmentIncomeLossRatioExcludingAdvisorsAgreementToOffsetManagementFee	0.0475
CY2024Q3	ecd	Non Rule10b51 Arr Adopted Flag NonRule10b51ArrAdoptedFlag	false
CY2024Q3	ecd	Rule10b51 Arr Adopted Flag Rule10b51ArrAdoptedFlag	false
CY2024Q3	ecd	Rule10b51 Arr Trmntd Flag Rule10b51ArrTrmntdFlag	false
CY2024Q3	ecd	Non Rule10b51 Arr Trmntd Flag NonRule10b51ArrTrmntdFlag	false

Files In Submission

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2024 Q4 Form 10-Q Financial Statement

#000162828024047639 Filed on November 13, 2024

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$FSEN FS Specialty Lending Fund Stock $fsen

2024 Q4 Form 10-Q Financial Statement

#000162828024047639 Filed on November 13, 2024

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$FSEN
FS Specialty Lending Fund Stock $fsen